JP2001273173A - Source information collecting device, recording medium of program for source information collection and program for source information collection - Google Patents

Abstract

PROBLEM TO BE SOLVED: To reduce influence to a system to be measured with source information collection, to improve convenience of a source information collecting device and to accurately and simply specify the performance penalty and the error of the system to be measured. SOLUTION: When various kinds of interruption including single step interruption and event overflow interruption occur, an interruption control part 3a outputs a trigger signal and an interruption signal. Thus, a selector and data collection part 5a collects source information to store it in a register 6, and a source information collecting program 2 starts traveling to read optional source information from the register 6. The program 2 sets the kind of source information of a collecting object and the effectiveness and ineffectiveness. The register 6 stores the generating source flag of an object event with source information corresponding to it.

Description

DETAILED DESCRIPTION OF THE INVENTION

[0001]

BACKGROUND OF THE INVENTION 1. Field of the Invention The present invention relates to a resource information collection device for acquiring resource information related to information processing, and more particularly to the operation analysis, debugging, and the like of various simulations and programs in the development of hardware and software.
The present invention relates to a resource information collection system for performance evaluation, performance tuning, and the like.

Generally, various kinds of resource information at that time are collected based on an interrupt from a system to be measured.

In this case, the resource information can be collected in a state close to the actual operation of the system under test with almost no denial of the behavior of the system under test. It is desirable to be able to accurately and easily specify the performance penalty points and error points of the system, and the present invention meets these demands.

[0004]

2. Description of the Related Art As a conventional resource information collecting method, for example, a detection mechanism is provided for detecting whether or not each instruction execution involves an access to a predetermined area to be measured in a main memory.
There is a resource information collection method that generates an interrupt when the detection mechanism detects an access to the area to be measured.

In this method, address trace data (instruction address, operand address) as resource information to be collected is determined by the operation of software when an interrupt occurs.
Is stored in a predetermined area on the main memory.

[0006]

This resource information collection method does not trace all accesses to the main memory due to the execution of instructions, but only accesses to the area to be measured. There is an advantage that the processing load on the software side due to information (address trace data) collection processing can be reduced quantitatively.

On the other hand, since resource information is collected and stored by heavy processing such as operation of software at the time of interruption, the processing has little effect on the behavior of the system under test. This leaves room for improvement.

According to the present invention, the resource information to be collected is collected and obtained not by the operation of software but by the operation of hardware.
An object of the present invention is to reduce the influence of the resource information collection on the system to be measured by storing and reading the stored information. In this specification, the term “hardware” is used to include “firmware”.

Further, the resource information collection software sets the type of the resource information to be collected, and sets the validity / invalidity of the interrupt which triggers the collection of the resource information, thereby improving the convenience of the resource information collection system. Aim.

It is another object of the present invention to store additional information indicating a penalty generating source and the like so that the performance penalty and error of the measured system can be specified and the cause analysis thereof can be performed accurately and easily.

[0011]

The present invention solves this problem as follows. (1) A resource information collection device for obtaining resource information related to information processing: a collection instruction unit for outputting an instruction signal for collecting resource information, and a hardware mode for collecting the resource information based on the instruction signal And resource information storage means for storing the collected resource information. The software is configured to read the resource information from the resource information storage means. (2) In the above (1), the sampling instructing means outputs the instruction signal in response to an interrupt, and software sets validity / invalidity of the interrupt. (3) In the above (1) and (2), the resource information collecting means has a function of selecting a resource information type to be collected, and the software sets the resource information type. (4) In the above (1), (2), and (3), the resource information storage means additionally stores additional information indicating resource information that is a direct source of the target event.

According to the present invention, as described in (1) above, resource information is collected and operated by the operation of hardware (resource information collecting means and resource information storing means) based on an instruction signal corresponding to an interrupt, an operator operation, or the like. It is stored so that the software (resource information collection program) can read the resource information from the hardware.

[0013] By collecting and storing the resource information by the operation of the hardware, the overhead is kept as small as possible, and the influence on the system to be measured due to the processing of collecting the resource information is reduced.

The reason why the overhead can be kept small is, for example, that
This is because, unlike the case where the resource information is collected by the operation of the software, calculation processing on the execution environment of the resource information collection is not required.

Further, as described in (2) and (3) above, the interruption / inactivation that triggers the output of an instruction signal for collecting resource information, and the type of resource information to be collected are specified by software (resource information collection program). ) Can be selectively set to ensure the convenience of the resource information acquirer.

Further, as described in (4) above, the direct source of the target event, for example, the penalty source (operand) of operands # 1 and # 2 involved in a cache miss can be specified by the additional information. The aim is to enhance the acquired resource information itself.

Further, the present invention provides a resource information collection program used for reading resource information collected by hardware means in such a resource information collection device from its storage means, and a computer-readable program storing the same. A possible resource recording program recording medium is also covered.

[0018]

DETAILED DESCRIPTION OF THE PREFERRED EMBODIMENTS An embodiment of the present invention will be described with reference to FIGS. 1 to 14, 1
Is a processor (resource information collection device), 2 is a processor 1
A resource information collection program having a function of acquiring various types of resource information of the system under test (inside and outside of the processor 1)
An interrupt control unit (collection instructing unit) 3a for processing an interrupt request from the resource information collection program 2 is a trap flag (T) for controlling the enable / disable of an interrupt.
F) and 4 are the cache state in processor 1, operand address, time stamp, operand destination contents,
Various resource information such as CPUID, 5 is a data collection unit (resource information collection means) which receives a trigger signal output from the interrupt control unit 3 and collects resource information 4, and 5a collects resource information 4 in response to the trigger signal. Selector / data collecting unit (resource information collecting unit), 6 is a dedicated register (resource information storing unit) for storing each type of resource information 4 collected by the data collecting unit 5 and the like, and 7 is a selector / data collecting unit. The dedicated stack register (resource information storage means) 8 for storing the resource information 4 collected in 5a counts the number of occurrences of the event set by the resource information collection program 2, and exceeds the threshold value (also set). An event counter that sometimes generates an overflow interrupt, 9 indicates a main memory, and 10 indicates a cache.

Here, the resource information collection program 2 includes: ON / OFF of the trap flag 3a, that is, enabling / disabling of various interrupts to the interrupt control unit 3. Type of resource information collected by the selector / data collection unit 5a. Read target portion of the register 6 and the dedicated stack register 7-The type of the target event and the threshold of the number of occurrences (Fig. 12,
(See FIG. 13).

When the setting of the trap flag 3a is "ON: valid", the interrupt control unit 3 determines whether the data collection unit 5 or the selector / data collection unit 5
a is notified of a trigger signal for collecting resource information, and the resource information collection program 2 is notified of an interrupt signal.

The selector / data collection unit 5a notifies the resource information collection program 2 of an interrupt signal based on the fact that the resource information has been stored in all the stages of the dedicated stack register 7.

The resource information collection program 2 having received the notification of the interrupt reads the resource information of the dedicated register 6 and the dedicated stack register 7 in response to the notification.

The resource information collection program 2 may read the resource information from the dedicated register 6 or the like at any timing unrelated to the occurrence of the interrupt. In this case, the interruption control unit 3 interrupts the resource information collection program 2 No signaling is required.

Hereinafter, individual embodiments will be described. FIG.
FIG. 2 is an explanatory diagram showing a system for collecting resource information of all types (using a dedicated register).

When an interrupt occurs in a state where the resource information collection program 2 sets the trap flag 3a to "ON: valid", the interrupt control unit 3 generates a trigger signal for data collection and an interrupt signal to the resource information collection program 2. The data collection unit 5 that has received the trigger signal collects all the resource information 4 and stores a dedicated register 6 for each type.
The resource information collection program 2 having received the interrupt signal shifts to a process of acquiring the resource information 4 from the dedicated register 6.

Since the contents of the register 6 are updated based on the trigger signal, the resource information collection program 2 can always read the updated new resource information from the dedicated register 6.

FIG. 2 is an explanatory diagram showing a processing procedure corresponding to FIG. 1, and the contents are as follows. The resource information collection program 2 sets ON / OFF of the trap flag 3a as preparation. (s11) The next step is triggered by the interruption. (s12) The interrupt control unit 3 determines whether or not the trap flag 3a is “ON”. If “YES”, the process proceeds to the next step. If “NO”, the interrupt process ends. (s13) The interrupt control unit 3 sends the trigger signal to the data collection unit 5
To the resource information collection program 2
And proceeds to the next step and step (s15). (s14) The data collecting unit 5 collects all the resource information 4 and stores it in the dedicated register 6 for each type, and terminates the interrupt processing. (s15) The resource information collection program 2 starts running, and proceeds to the next step. (s16) Resource information collection program 2 is now resource information 4
Is determined from the dedicated register 6 and
If “YES”, proceed to the next step, and if “NO”, end the interrupt processing. (s17) The resource information collection program 2 reads out any resource information 4 from each dedicated register 6 corresponding to the resource information 4, and terminates the interrupt processing.

In the determination of step (s16), the resource information collection program 2 checks whether the total number of interrupts from the previous resource information reading to the current interrupt has reached the reference number, It is checked whether the time from the time to the reception of the current interrupt signal exceeds the reference time. This determination method is also used in the similar steps (s26), (s39), (s52), (s67), and (s86) in the processing procedure of FIG.

FIG. 3 is an explanatory diagram showing a collection system (using a dedicated register) for single-type selected type resource information set by the resource information collection program.

In this specification, the resource information collection program 2
The resource information of the type set by is referred to as “selected type resource information” as necessary.

When an interrupt occurs while the resource information collection program 2 sets the trap flag 3a to "ON: valid", the interrupt control unit 3 sends a trigger signal for data collection and a request to the resource information collection program 2. An interrupt signal is output, and a selector / data sampling unit 5a receiving a trigger signal
Collects the selected species resource information and stores it in the dedicated register 6. The resource information collection program 2 having received the interrupt signal shifts to a process of acquiring the selected species resource information from the dedicated register 6.

FIG. 4 is an explanatory diagram showing a processing procedure corresponding to FIG. 3, and the contents are as follows. Note that the resource information collection program 2 sets ON / OFF of the trap flag 3a as preparation, and sets only one type of collection resource information to the selector / data collection unit 5a. (s21) The interruption proceeds to the next step. (s22) The interrupt control unit 3 determines whether or not the trap flag 3a is "ON". If "YES", the process proceeds to the next step, and if "NO", the interrupt process ends. (s23) The interrupt control unit 3 notifies the trigger signal to the selector / data collection unit 5a, and notifies the resource information collection program 2 of the interrupt signal.
Proceed to (s25). (s24) The selector / data collection unit 5a collects the selected seed resource information, stores it in the dedicated register 6, and ends the interrupt processing. (s25) The resource information collection program 2 starts running, and proceeds to the next step. (s26) The resource information collection program 2 now has the resource information 4
Is determined from the dedicated register 6 and “
If “YES”, proceed to the next step, and if “NO”, end the interrupt processing. (s27) The resource information collection program 2 reads the selected species resource information from the dedicated register 6, and ends the interrupt processing.

FIG. 5 is an explanatory diagram showing a collection system (using a dedicated register) for a plurality of types of selected type resource information set by the resource information collection program.

In this collection system, N dedicated selector / data sampling units 5a and N dedicated registers 6 are provided in FIG. 3 and both correspond to one to one.

Thus, the resource information collection program 2
Can read resource information of a plurality of types, for example, only resource information mutually dependent, from each dedicated register 6 at one time.

The processing procedure corresponding to the collection system shown in FIG. 5 and the processing procedure shown in FIG. 4 are different from each other in the contents of the preparation of the resource information collection program 2 and the method of acquiring the selected type resource information from the dedicated register 6. .

That is, the resource information collection program 2 in FIG. 5 sets: a plurality of types of collection resource information (which is expected by itself) in the selector / data collection unit 5a as preparatory steps; The seed resource information is read from each dedicated register 6.

The selector / data collection unit 5a collects the selected type resource information set by the resource information collection program 2 based on a trigger signal from the interrupt control unit 3, and dedicates the resource information for each type. Stored in register 6.

FIG. 6 is an explanatory diagram showing a system for collecting resource information of a single type set by the resource information collection program (using a dedicated stack register: part 1).

When an interrupt occurs while the resource information collection program 2 sets the trap flag 3a to "ON: valid", the interrupt control unit 3 outputs a trigger signal for collecting resource information (the resource information collection program 2). No interrupt signal is output.)

Each time the selector / data collecting unit 5a receives the trigger signal, it collects the selected seed resource information and sequentially stores the selected seed resource information in the n-stage dedicated stack register 7, and stores the selected seed resource information up to the n-th stage. Stop the collection process at this point.

When the collection process is interrupted, an interrupt signal is notified to the resource information collection program 2. The program that has received the interrupt signal reads the selected seed resource information from an arbitrary stage of the dedicated stack register 7.

FIG. 7 is an explanatory diagram showing a processing procedure corresponding to FIG. 6, and the contents are as follows. The resource information collection program 2 performs a trap flag 3
a ON / OFF setting, and a selector / data collection unit 5
The type of the collected resource information is set in a, and the dedicated stack register 7 is initialized. (s31) The interruption proceeds to the next step. (s32) The interrupt control unit 3 determines whether or not the trap flag 3a is "ON". If "YES", the process proceeds to the next step. If "NO", the interrupt process ends. (s33) The interrupt control unit 3 notifies the trigger signal for collecting resource information to the selector / data collecting unit 5a, and proceeds to the next step. (s34) The selector / data collection unit 5a collects the selected seed resource information, stores it in the dedicated stack register 7, and proceeds to the next step. (s35) The selector / data collection unit 5a determines whether resource information is stored up to the last stage of the dedicated stack register 7. If "YES", the process proceeds to the next step.
If “NO”, the interrupt processing ends. (s36) The selector / data collection unit 5a suspends the collection processing of the selected species resource information, and proceeds to the next step. (s37) The selector / data collection unit 5a notifies the resource information collection program 2 of the interrupt signal, and proceeds to the next step. Note that the operation of the selector / data collection unit 5a ends once. (s38) The resource information collection program 2 starts running, and proceeds to the next step. (s39) The resource information collection program 2 determines whether or not the resource information 4 is immediately read from the dedicated stack register 7. If "YES", the process proceeds to the next step and "NO".
In the case of, the process proceeds to step (s41). (s40) The resource information collection program 2 reads the selected type resource information from an arbitrary stage of the dedicated stack register 7, and proceeds to the next step. (s41) The resource information collection program 2 determines whether or not to continue collecting the selected species resource information. If “YES”, the process proceeds to the next step. If “NO”, the interrupt process ends. (s42) The resource information collection program 2 initializes the dedicated stack register 7, and proceeds to the next step. (s43) The resource information collection program 2 instructs the selector / data collection unit 5a to cancel the suspension of the collection of the selected type resource information, and ends the interrupt processing.

FIG. 8 is an explanatory diagram showing a collection system (using a dedicated stack register: part 2) of single type of selected type resource information set by the resource information collection program.

When an interrupt occurs while the resource information collection program 2 sets the trap flag 3a to "ON: valid", the interrupt control unit 3 sends a trigger signal for data collection and a request to the resource information collection program 2. An interrupt signal is output, and a selector / data sampling unit 5a receiving a trigger signal
Collects the set resource information and stores it in the dedicated stack register 7. A resource information collection program which receives an interrupt signal from the interrupt control unit 3 or an interrupt signal (see FIG. 6) from the selector / data collecting unit 5 a 2 shifts to a process of acquiring the selected species resource information from the dedicated stack register 7.

The resource information collection system of FIG. 8 differs from the system of FIG. 6 in that the resource information collection program 2 receives an interrupt notification from both the interrupt control unit 3 and the selector / data collection unit 5a. ing.

That is, the trap flag 3a is set to “ON:
In the state of “valid”, the interrupt control unit 3 sends the resource information collection program 2 every time an expected interrupt factor occurs.
Is directly notified of the interrupt signal.

Thus, the resource information collection program 2
Can select a resource information acquisition process for each interrupt occurrence (every interruption to the interrupt control unit 3) and a resource information acquisition process for each of the n occurrences of the interrupt.

FIG. 9 is an explanatory diagram showing a processing procedure corresponding to FIG. 8, and the contents are as follows. Steps
7 is different from the processing procedure of FIG. 7 in that steps (s51) to (s55) are added, and the procedure other than the steps and the contents of the preparation for the resource information collection program 2 are the same as those in FIG. (s31) The interruption proceeds to the next step. (s32) The interrupt control unit 3 determines whether or not the trap flag 3a is "ON". If "YES", the process proceeds to the next step. If "NO", the interrupt process ends. (s33 ') The interrupt control unit 3 notifies the trigger signal for data collection to the selector / data collection unit 5a and the interrupt signal to the resource information collection program 2, and proceeds to the next step and step (s51). . (s34) The selector / data collection unit 5a collects the selected seed resource information, stores it in the dedicated stack register 7, and proceeds to the next step. (s35) The selector / data collection unit 5a determines whether resource information is stored up to the last stage of the dedicated stack register 7. If "YES", the process proceeds to the next step.
If “NO”, the interrupt processing ends. (s36) The selector / data collection unit 5a suspends the collection processing of the selected species resource information, and proceeds to the next step. (s37) The selector / data collection unit 5a notifies the resource information collection program 2 of the interrupt signal, and proceeds to the next step. Note that the operation of the selector / data collection unit 5a ends once. (s38) The resource information collection program 2 starts running, and proceeds to the next step. (s39) The resource information collection program 2 determines whether or not the resource information 4 is immediately read from the dedicated stack register 7. If "YES", the process proceeds to the next step and "NO".
In the case of, the process proceeds to step (s41). (s40) The resource information collection program 2 reads the selected type resource information from an arbitrary stage of the dedicated stack register 7, and proceeds to the next step. (s41) The resource information collection program 2 determines whether or not to continue collecting the selected species resource information. If “YES”, the process proceeds to the next step. If “NO”, the interrupt process ends. (s42) The resource information collection program 2 initializes the dedicated stack register 7, and proceeds to the next step. (s43) The resource information collection program 2 instructs the selector / data collection unit 5a to cancel the suspension of the collection of the set resource information, and ends the interrupt processing. (s51) The resource information collection program 2 starts running, and proceeds to the next step. (s52) The resource information collection program 2 judges whether to immediately read the resource information 4 from the dedicated stack register 7, and if "YES", proceeds to the next step and proceeds to "NO".
In the case of, the process proceeds to step (s54). (s53) The resource information collection program 2 reads the selected type resource information from an arbitrary stage of the dedicated stack register 7, and proceeds to the next step. (s54) The resource information collection program 2 determines whether or not to suspend the collection of the selected species resource information. If “YES”, proceed to the next step; if “NO”, end the interrupt processing. . (s55) The resource information collection program 2 instructs the selector / data collection unit 5a to suspend the collection of the selected type resource information, or changes the trap flag 3a to "OFF", and ends the interrupt processing.

FIG. 10 is an explanatory diagram showing a collection system (using a dedicated register) for selected type resource information set by the resource information collection program based on a single step interrupt (interrupt for each instruction).

In this case, the trap flag 3a operates only as a control flag for the single-step interrupt mode, that is, only as a control flag for setting the enable / disable of the interrupt for each instruction.

When the resource information collection program 2 sets the trap flag 3a to "ON: valid" and an interrupt occurs with the execution of one instruction of the resource information collection target program, the interrupt control unit 3 Trigger signal and an interrupt signal to the resource information collection program 2 are output.
Collects the selected species resource information and stores it in the dedicated register 6. The resource information collection program 2 having received the interrupt signal shifts to a process of acquiring the selected species resource information from the dedicated register 6.

That is, when the setting of the trap flag 3a is "ON: valid", the resource information collection program 2 acquires the resource information of the dedicated register 6 based on an interrupt generated each time the instruction of the resource information collection target program is executed. Thereafter, the execution of the next instruction of the resource information collection target program is repeated.

Thus, the resource information collection program 2
Can acquire the resource information for each instruction of the resource information collection target program, so as to understand the overall behavior of the measured system.

FIG. 11 is an explanatory diagram showing a processing procedure corresponding to FIG. 10, and the contents are as follows. The resource information collection program 2 sets ON / OFF of the trap flag 3a and sets the type of the collected resource information for the selector / data collecting unit 5a as preparation. (s61) The next step is triggered by an interrupt (interrupt for each instruction). (s62) The interrupt control unit 3 sets the trap flag 3a to “OF”.
F "and proceed to the next step. Here, the trap flag 3a is set to “OFF” because an interrupt request based on the execution of an instruction in a program other than the resource information collection target program is invalidated. This is to prevent occurrence. It should be noted that the contents of the trap flag 3a before this setting are held. (s63) The interrupt control unit 3 determines whether or not the interrupt (interrupt for each instruction) is valid, that is, step (s61).
It is determined whether or not the trap flag 3a at the time of is "ON", and if "YES", the process proceeds to the next step.
If “NO”, the interrupt processing ends. (s64) The interrupt control unit 3 notifies the trigger signal for collecting resource information to the selector / data collecting unit 5a, and notifies the interrupt signal to the resource information collection program 2, and proceeds to the next step and step (s66). move on. (s65) The selector / data collection unit 5a collects the selected seed resource information, stores it in the dedicated register 6, and ends the interrupt processing. (s66) The resource information collection program 2 starts running, and proceeds to the next step. (s67) The resource information collection program 2 determines whether to read the resource information 4 from the dedicated register 6 immediately,
If “YES”, proceed to the next step; if “NO”, proceed to step (s69). (s68) The resource information collection program 2 reads the selected species resource information from the register 6, and proceeds to the next step. (s69) The resource information collection program 2 determines whether or not to continue the resource information collection process for each instruction of the resource information collection target program. If “YES”, proceed to the next step and proceed to “NO”. In this case, the interrupt processing ends. (s70) The resource information collection program 2 sets the trap flag 3a.
Is set to “ON”, and the interrupt processing ends.

FIG. 12 is an explanatory diagram showing a collection system (using an event counter and a dedicated register) for selected type resource information when a target event of the type set by the resource information collection program occurs. The resource information collection program 2 also sets the number of occurrences (threshold) of the target event and the type of the collected resource information.

When the resource information collection program 2 sets the trap flag 3a to "ON: valid", an overflow interrupt of the event counter 8 occurs, that is, a set target event (for example, a cache miss, a branch prediction miss, or the like). When the number of occurrences exceeds the set threshold, the interrupt control unit 3 outputs a trigger signal for data collection and an interrupt signal to the resource information collection program 2, and the selector / data collection unit 5a receiving the trigger signal
Collects the selected species resource information and stores it in the dedicated register 6. The resource information collection program 2 having received the interrupt signal shifts to a process of acquiring the selected species resource information from the dedicated register 6.

The event counter 8 is cleared to zero as soon as the count value exceeds the threshold value, and continues to count the number of occurrences of the target event thereafter.

In FIG. 12, when the trap flag 3a is "ON: valid", an overflow interrupt is generated each time the number of times of occurrence of the target event exceeds the threshold, and the resource information collection program 2 stores the selected type resource information in the register 6 To get from.

Thus, the resource information collection program 2
Is capable of acquiring statistically significant selected species resource information in a state close to an actual operation operation with almost no overhead.

For example, the overhead associated with event-based overflow interrupt tracing on a machine that takes about 900 times as much overhead as tracing for each instruction is less than 1.02 times.

The acquisition process shown in FIG.
Is executed repeatedly until the setting of the target event is invalidated.

FIG. 13 is an explanatory diagram showing a processing procedure corresponding to FIG. 12, and the contents are as follows. The resource information collection program 2 sets ON / OFF of the trap flag 3a as a preparation, sets the type of the collected resource information to the selector / data collection unit 5a,
Further, the type of the target event and the threshold value of the number of occurrences are set for the event counter 8. (s81) The next step is triggered by the overflow interrupt of the event counter 8. (s82) The interrupt control unit 3 determines whether or not the trap flag 3a is "ON". If "YES", the process proceeds to the next step, and if "NO", the interrupt process ends. (s83) The interrupt control unit 3 notifies the trigger signal for resource information collection to the selector / data collection unit 5a, and notifies the interrupt signal to the resource information collection program 2, and proceeds to the next step and step (s85). . (s84) The selector / data collecting unit 5a collects the selected seed resource information, stores it in the dedicated register 6, and ends the interrupt processing. (s85) The resource information collection program 2 starts running, and proceeds to the next step. (s86) The resource information collection program 2 determines whether to read the resource information 4 from the dedicated register 6 immediately,
If “YES”, proceed to the next step; if “NO”, end the interrupt processing. (s87) The resource information collection program 2 reads the selected species resource information from the dedicated register 6, and ends the interrupt processing.

FIG. 14 is an explanatory diagram showing a state in which the source flag of the target event in FIG. 12 is added to a dedicated register. For convenience of explanation, it is assumed that an instruction set with a maximum of two operands per instruction is used and that a cache miss occurs.

Here, when a cache miss occurs during the execution of an instruction having operands $ 1 and $ 2, data collection unit 5 and selector / data collection unit 5a store the resource information of operands $ 1 and $ 2. In the dedicated register 6, ・ In the storage area of the operand # 1 that has hit the cache, the event occurrence source flag “0: invalid” indicating that fact is also held. In the storage area of the operand # 2 that has not hit the cache, Event source flag "1: source" indicating this
Also holds.

As a result, the resource information collection program 2
From the selected species resource information stored in the dedicated register 6,
Operands involved in cache miss of the target event
Not only can 1 and # 2 be confirmed, but also the source of the penalty of the target event can be specified.

In addition to using a register as the resource information storage means, as well as using a stack register as the means, it is optional whether the type setting of the collected resource information is single or plural. is there. When a plurality of types are set, the number of registers / stack registers corresponding to the set contents may be used.

FIG. 15 is an explanatory diagram showing an outline of a computer system which reads a program from a computer-readable recording medium and executes the program. 20 is a computer system, 21 is a main unit incorporating a CPU and a disk drive device, etc. Reference numeral 22 denotes a display for displaying an image in accordance with an instruction from the main body unit 21;
Is a keyboard for inputting various information to the computer system 20, 25 is a mouse for specifying an arbitrary position on the display screen 23, 26 is an external database (line memory such as DASD), and 27 is an external database 26. The modem 28 to be accessed is a portable recording medium such as a CD-ROM or a floppy (registered trademark) disk.

The recording medium for storing the program may be any of a database 26 (line destination memory) on the program provider side, a portable recording medium 28, and a RAM or a hard disk on the main body 21 side. It is loaded into the unit 21 and executed on its main memory.

[0070]

As described above, according to the present invention, the resource information to be collected is collected and stored by the operation of the hardware, and the stored information is read out from the register or the like by the software. In addition to reducing the impact on the system, various operations such as reading registers and other resource information can be performed by simple operations, such as resource information that was difficult to collect using conventional software methods. The resource information and the like which required the calculation of can also be obtained.

Further, the software can determine the type of the resource information to be collected and the validity / invalidity of the interrupt which triggers the collection of the resource information.
Since the invalidation is set, the collection mode of the resource information can be selectively set to enhance the convenience of the resource information collection device.

Further, since additional information indicating a penalty generation source and the like is also stored, it is possible to accurately and easily specify the performance penalty and error of the measured system and analyze the cause thereof.

[Brief description of the drawings]

FIG. 1 is an explanatory diagram showing a system for collecting resource information of all types (using a dedicated register) according to the present invention.

FIG. 2 is an explanatory diagram showing a processing procedure corresponding to FIG. 1 of the present invention.

FIG. 3 is an explanatory diagram showing a collection system (using a dedicated register) for single-type selected type resource information set by a resource information collection program according to the present invention;

FIG. 4 is an explanatory diagram showing a processing procedure corresponding to FIG. 3 of the present invention.

FIG. 5 is an explanatory diagram showing a collection system (using a dedicated register) of a plurality of types of selected type resource information set by a resource information collection program according to the present invention.

FIG. 6 is an explanatory diagram showing a collection system of single type of selected type resource information set by a resource information collection program (using a dedicated stack register: 1) according to the present invention;

FIG. 7 is an explanatory diagram showing a processing procedure corresponding to FIG. 6 of the present invention.

FIG. 8 is an explanatory diagram showing a collection system of single type of selected type resource information set by a resource information collection program (using a dedicated stack register: part 2) according to the present invention;

FIG. 9 is an explanatory diagram showing a processing procedure corresponding to FIG. 8 of the present invention.

FIG. 10 is a collection system of selected type resource information set by a resource information collection program based on a single step interrupt (interrupt for each instruction) of the present invention (using a dedicated register).
FIG.

FIG. 11 is an explanatory diagram showing a processing procedure corresponding to FIG. 10 of the present invention.

FIG. 12 is an explanatory diagram showing a system (an event counter and a dedicated register are used) for collecting selected type resource information when a target event of the type set by the resource information collection program occurs, according to the present invention;

FIG. 13 is an explanatory diagram showing a processing procedure corresponding to FIG. 12 of the present invention.

FIG. 14 is an explanatory diagram showing a state when the source flag of the target event of FIG. 12 is added to a dedicated register according to the present invention.

FIG. 15 is an explanatory diagram showing an outline of a computer system for reading and executing a program from a computer-readable recording medium according to the present invention.

[Explanation of symbols]

1: Processor 2: Resource information collection program 3: Interrupt control unit 3a: Trap flag (TF) for controlling enable / disable of interrupt 4: Various resource information 5: Data collection unit (resource information collection unit) 5a: Selector / data Collection unit (resource information collection unit) 6: Resource information dedicated register (resource information storage unit) 7: Resource information dedicated stack register (resource information storage unit) 8: Event counter 9: Main memory 10: Cache 20: Computer system 21: Main body with built-in CPU, disk drive, etc. 22: Display 23: Display screen 24: Keyboard 25: Mouse 26: External database (line destination memory such as DASD) 27: Modem 28: CD-ROM or floppy disk Portable recording media such as

 ──────────────────────────────────────────────────続 き Continuing on the front page (72) Inventor Satoshi Hirai 4-1-1, Uedanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture Inside Fujitsu Limited (72) Inventor Mitsuru Sato 4-1-1, Kamiodanaka, Nakahara-ku, Kawasaki-shi, Kanagawa Prefecture No. 1 Inside Fujitsu Limited (72) Inventor Akira Naruse 4-1-1 Kamikodanaka, Nakahara-ku, Kawasaki City, Kanagawa Prefecture Inside Fujitsu Limited

Claims (6)

[Claims] 1. A resource information collecting apparatus for obtaining resource information related to information processing, a collecting instruction means for outputting a resource information collecting instruction signal, and a hardware for collecting the resource information based on the instruction signal. Resource information collecting means, comprising: resource information collecting means for storing the collected resource information; and reading the resource information from the resource information storing means by operation of software. apparatus. 2. The method according to claim 1, wherein said sampling instructing means outputs said instruction signal in response to an interrupt, and software sets validity / invalidity of said interrupt.
Resource information collection device as described. 3. The resource information collection device according to claim 1, wherein the resource information collection unit has a function of selecting a resource information type to be collected, and software sets the resource information type. Collection device. 4. The resource information collection device according to claim 1, wherein said resource information storage means additionally stores additional information indicating resource information which is a direct source of the target event. 5. A computer-readable recording medium storing a program for acquiring resource information related to information processing, wherein the program is collected by hardware means based on an instruction signal for collecting resource information. A resource information collection program recording medium for causing a computer to realize a function of reading the obtained resource information from its storage means. 6. A program for acquiring resource information related to information processing, said program storing said resource information collected by means of hardware mode based on an instruction signal for collecting resource information. A resource information collection program for causing a computer to realize a function of reading from a resource.