TW201140313A - Virtual performance monitoring apparatus and method for using to monitor system performance - Google Patents

Abstract

This invention relates to a virtual performance monitoring apparatus and method for using to monitor system performance. The apparatus includes a performance monitoring and managing module for monitoring a command flow executed on a virtual platform and receiving a performance monitoring command; at least a simulator for simulating a specific hardware; and at least a counter for storing related performance data of the command flow. The method includes: step A: monitoring a command flow executed on a virtual platform and receiving a performance monitoring command; step B: simulating specific software and hardware for obtaining performance data; step C: judging whether the performance data needs to be calculated for determining whether to enter step D or step E; step D: performing calculation on the performance data to generate a post-calculated performance data and entering into step E; step E: store the performance data.

Description

201140313 VI. Description of the Invention: [Technical Field] The present invention relates to a virtual performance monitoring device and method for system performance monitoring, in particular to simulating a target hardware platform by using a simulator, thereby evaluating application software and A virtual performance monitoring device and method for hardware interaction and versatility, and the performance of all or part of the process. [Prior Art]

In recent years, in the context of the increasingly complex interaction and development of software and hardware, it has been developed to analyze program execution instructions, track down events, and find the system. However, in the early stage of soft computing, the designer must develop and design on the target hardware platform corresponding to the software. Therefore, before the target hardware platform is completed, the conventional software performance analysis tool cannot be used for the target. The analysis and evaluation of software performance on the hardware platform has caused the evaluation of system performance, the identification of performance bottlenecks, and the design of soft and hard systems at the same stage of the hardware platform. , which reduces the competitiveness of the product. In order to solve the above problems, the virtual platform used to simulate the target hardware platform is the way out of the hardware platform of the target hardware platform, providing a "environment to the software winners" _ can cut the virtual target Wei On the platform, the virtual operation and evaluation of the virtual platform does not provide users with key software and hardware effects when executing software _'such as private _ type, silk _, _ 潜 钱 _ people lurking, etc. Enables the co-optimization of software hardware at the same time that it is not effective on the virtual platform. 201140313 On the other hand, the well-known platform performance analysis tool is evaluated with an accurate but relatively slow instruction set architecture simulator or electronic system-level simulation tool. The performance of a single application software, this method only focuses on the simulation hardware, and there is no way to analyze the performance of the application software part of the program section. Therefore, when using this method for software performance evaluation, only a certain program section can be provided. The overall performance data at the time of execution, and it is not possible to separately parse a particular program section (piOfiie). In addition, because the implementation speed of the platform performance analysis tool can not simulate the interaction between the hardware and software, it can only be applied to the simplified embedded operating system, thus limiting the software developed. The range of hardware applications. Therefore, how to develop a device for evaluating the overall performance of a complex system on a virtual platform' and the device can also be used to evaluate the performance of the software-specific program segment, which becomes the effort of the relevant software and hardware design vendors. aims. SUMMARY OF THE INVENTION The present inventors have in view of the problem that the system performance evaluation and the software #behavior analysis on the virtual platform are actively carried out in view of the conventional performance evaluation method, in order to improve the shortcomings of the ship, and to continuously test and work hard. Finally, the invention has been developed. The main purpose of the present invention is to provide a virtual performance monitoring device for operating in a virtual platform. The virtual platform is on the operating platform, and the intermediary software is used to simulate - (4), fine virtual (4) Display-target Natong and - performance monitoring software 'The device includes - performance monitoring module, at least - mode touch and at least one counter. The performance monitoring management module is configured to receive and monitor the instructions executed on the virtual platform, and to accept the instructions of the software system and the instructions of the performance monitoring software. The at least one simulator is coupled to the performance monitoring management module, and simulates part or all of the hardware of the target hardware platform according to the performance monitoring command received by the performance monitoring management module. The at least the hodgepodge machine monitors the management pool, and (10) has relevant performance information of the instruction stream executed on the virtual platform. Another object of the present invention is to provide a method for virtual performance monitoring for system performance monitoring. The method is operated on a virtual platform, and the platform is simulated on an operating platform by an intermediary software. a platform, and simulating a target software system and a performance monitoring software on the virtual platform, the method comprising: Step A: receiving and monitoring an instruction flow executed on the virtual platform and accepting a performance monitoring command of the performance monitoring software; Step B: According to the performance monitoring command of the performance monitoring software and the instruction stream, simulate the software and hardware to obtain a performance information; Step C: determine whether the performance information needs further calculation processing, and if so, enter Step D 'If no, go directly to step e; Step D: Calculate the performance information and generate a calculated performance resource. Enter 'Step E; and. Step E: Store the performance information. With the above device and method, the performance information of the instruction stream executed on the virtual platform can be calculated, processed and stored, so that the designer can use the performance information to evaluate different hardware elements 5 201140313 in the overall wire towel to software The impact of the mosquito section. The present invention is described in detail below with reference to the drawings. She __咐崎监控装置

(not shown) is an intermediary software (such as ', ° ° ^ ^ simulation of the entire computer system, including the central processing ϋ and other financial equipment self-domain, graphic simulation - target hardware flat. (In the picture (4); imaginary (four) wall - target 峨 能 能 能 ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( ( And (3 0) / Performance Test Management ( i Q ) is the command flow executed on the platform and the performance monitoring command of the performance monitoring software. The at least - simulator (2 〇) system Linked to the performance monitoring management module (丄〇), which simulates part or all of the hardware of the target hardware platform according to the Wei monitoring command reduced by the performance management pool (! G). The at least one counter ( 3 〇) is linked to the performance monitoring management module (1 〇), which is used to store relevant performance information of the instruction stream executed on the virtual platform, and the performance information is transmitted to the external software for further analysis and application. Where 'in this embodiment, the performance The information includes: the number of instructions (instruetiQn e_t)] 6 201140313 Virtual execution time, clock number, cache access number and number of errors, etc. - Refer to the second figure, where the performance monitoring management module (1) 〇) further includes an event-monitoring directory (1 1) and a performance event collection interface (1 2 ), wherein the event monitoring directory (11) is linked to the at least-simulator (20), and is used to column The monitored events are respectively connected to the corresponding simulators; the performance event collection interface (Work 2) is linked to the event monitoring directory (丄χ), which is configured to calculate the monitored events. Information, updating the at least-counter (3 〇) data and exchanging information between the performance monitoring management module (work call 0), at least one simulator (20), and at least one counter (3 〇) Further includes an instruction record buffer (! 2 1 ), an performance data buffer!| (i 2 2 ), and a management function (123), wherein the instruction record buffer (121) is associated with the at least one simulator (2) 〇) link, which is used to keep track of instruction flow (instru Cti〇ntrace) to drive the at least one simulator (20). The performance data buffer (12 2) is coupled to the at least one simulator (2 〇) and the at least one counter (30), And storing the performance information generated by the at least one simulator (2 〇), and transmitting the performance information to the at least one counter (3 〇). The management function (12 3) is associated with the at least one simulator (2 〇 And the at least one counter (30) is linked 'which includes a set of event-dependent callback functions (event_depen (jentcall-back)) to manage the at least one simulator (2 ◦), which includes an initialization function ( Initialize

Unction), finalization function, PushtoTraceBuf data transfer fbnction and the update of the instruction transfer buffer (1 2 1)

a „ [ S at least one s ten (3 0) data transfer function (UpdatetoPMC data transfer 201140313 fiinction). The initialization function (initialization fimction) is used to initialize the at least one counter (3 0) ° the finalization function (finalization function) is used to clear the record in the at least one counter (30). The push data transfer function (pusht〇TraceBufdata transferfUnction) of the s recording buffer (1 2 1) is used to slave instructions. The memory access instruction stream is obtained in the stream, and the memory access instruction stream is put into the instruction record buffer (1 2 1 ). The update is at least - the data transfer function of the counter (3 0 ) (Updatet〇pMC her tmnsferfimction The at least one counter (30) may be updated when the performance monitoring software wants to read the at least one counter (3 。). The at least one simulator (20) comprises: - a micro-architecture simulator (2 i) , including at least - a simulator for simulating the micro-architectural components of the target hardware platform; and a peripheral (four) thin (2 2), including a simulator of at least the side device components. In this embodiment, The micro-architecture simulator ( ,, ώ 1) is coupled to the performance monitoring management module (10), and includes a pipeline simulator (2 9 ν .t . ) and a data cache simulator (2 1 4 ) Γ ( 2 1 3 } ( 2 1 4) and a bus simulator (2丄5). 丄 The pipeline simulates HUH), and the event is in the same age as the one of the squats. #皿&quot;·Table of Contents (11 Linking, and corresponding, which is used to simulate the CPU of the target hardware platform ^ 201140313 (pipelme) execution, using the above simulation function, & < further analysis and estimation of virtual execution, time, and The virtual execution time is transmitted back to the performance monitoring management module (1〇). The poor material cache simulator (2 1 2) is linked to the event monitoring directory (11) and corresponds to the monitored event. 'The side is to simulate the data cache memory of the target central processor of the target hardware platform; the instruction cache simulator (2 1 3) is linked to the event monitoring directory (1丨), Companion to the -monitored event, its _ to simulate the hard disk of the hard disk C» cache memory (instructi〇n ca Che mem〇ry ); the dynamic random access memory simulator (214) is linked to the event monitoring directory (1!) and corresponds to a monitored event, which is used to simulate the target hardware platform. Dynamic random access memory; the bus modulo (2 15) is linked to the event monitoring directory (丨丨) and corresponds to a monitored event, which is used to simulate the target hardware platform Bus bar. The micro-architecture simulator (21) simulates specific components of the target hardware platform. For example, the data cache simulator (212) only needs a memory reference record to perform simulation of the data cache memory, and the data cache simulator (2 i 2) has adjustable parameters, which can be adjusted. Parameters include: cache capacity, block size, associativity, and replacement policy (repiacementp〇1icy). After the simulation work, the micro-architecture simulator (2 1) reports the number of cache hits and cache misses caused by the memory reference record to the performance monitoring management module (1 〇 ). - the peripheral device simulator (2 2) is connected to the performance monitoring management module (丄〇2). It includes a memory simulator (2 2 i ), a disk simulator (2 2 2 ), and a network. Simulator (2 2 3) and direct memory access simulator (2 2 4). The flash memory emulator (2 2 1 ) is coupled with the event monitoring directory (i丄) [sj 9 201140313 flash memory; and corresponds to the monitored event, which is used to simulate the target hard The platform catalog (11) is linked and corresponds to an event that the disk simulator (2 2 2 ) is monitored and monitored by the event monitoring device, and the target device is a ridge target device (2 2 3) Linked to the event monitoring directory (11) and corresponding to the monitored event, which is used to simulate the network system of the target hardware platform; the direct memory access simulator (2 2 4) Linked to the event monitoring directory (11) and corresponding to the monitored event, which is used to simulate the direct memory accessor of the target hardware platform.

The virtual performance monitoring device (1) for system performance monitoring of the present invention further includes a user interface (not shown), and the user can defeat the number of simulators by the manufacturer, and is generally enabled. Not only does it improve the accuracy of performance analysis, but it also enables more effective returning. However, the virtual performance monitoring device (1) of the Lin Wei listening monitoring of the present invention performs the multi-faceted simulator in parallel and separately, and the overall simulation speed is equal to the slowest analog (four) speed. In the manner of executing one simulator _ times, the present invention may depend on the overall execution speed of the subsequent simulation correction. The at least one juice counter (30) includes a virtual time tag counter (3 1 ), - clock a cycle counter (3 2) and an event counter (3 3). The virtual time tag count ^ ( 3 i ) is stored in the virtual execution _; the clock cycle · "10" is used to store the The number of clock cycles of the instruction stream: the event counter (3 3) is used to store performance-related events. In addition, the present invention simultaneously executes a plurality of standard check programs on the target hardware platform and the virtual platform. The virtual performance monitoring device for inventing the m system performance monitoring further includes a timing device (not shown) for obtaining the actual and virtual execution time of the instruction stream. With the timing 201140313, the following calculation formula ER = Ο 100% can be used. On behalf of the timing Home of accuracy, P is the predicted value of the standard inspection program executed on one of the virtual time of the virtual platform execution timing means for acquiring time ten o'clock ... Solutions level of transfer apparatus places the following calculation equation:

K where Gu represents the average resolution of the timing device, κ _ county inspection program total, and ERi is the accuracy of the first standard inspection program. Please refer to the third figure, the method for virtual performance monitoring of system performance monitoring of the present invention. The method is operated on a virtual platform. The virtual platform is on an operating platform with an intermediary software (such as QEMU'. In the simulation-target hardware platform (not shown); and on the virtual platform, the simulation-target software system (not shown) and the performance monitoring software (not shown), the method includes : Step A ( 4 0 1 ). Receive and monitor the instruction flow executed on the virtual platform and accept the performance monitoring command of the performance monitoring software; (4 0 2 ). According to the performance monitoring command and the flow of the monitoring software To simulate the soft and hardware of the stunt to obtain the performance information; Step C (4 0 3 ). Determine whether the performance information needs to be processed in advance, if it is (3) 11 05); 201140313 and generate a calculated Step D (4 0 4) 'If no, go directly to step e (4 step D (4 0 4 ): calculate and process the performance information, the performance information, enter step E (4 〇 5); and step E ( 4 0 5 ): Store the performance information. In addition, this step E (4 〇5) After the execution is completed, you can go back to the execution step a (4◦丄). The performance resource 1_: age (instruetl_unt), virtual_interaction, number of clock cycles, cache accesses, and cache Number of mistakes, etc.

Please refer to the fourth figure, the method for virtual performance monitoring of the system performance monitoring of the present invention further includes: then transmitting the performance information step F (460): performing step E (4 〇 5) to The performance monitoring software provides reference information for monitoring and performance evaluation. In addition, after the step F (460) is performed, it can return to step A (4 0 1). Through the above structure and method, the performance information generated by the virtual platform can be calculated, processed and stored, so that the designer can evaluate the different hardware components in the overall pure In the specific program section of the software, the performance between the single __software hardware, as shown in the second to fourth figures, in order to make it easier for the reviewing committee to understand the creative content of the present invention, the special implementation The mode is as follows: The field user wants to get - the performance information of the instruction stream executed on the virtual platform (such as the number of cache misses) - first through the Newton monitoring software - Wei monitoring command; ~ effect this orphan management mode The group (丨Q) starts the corresponding at least emulator according to the performance monitoring command (such as the cache simulator (2丄2), so that the at least one simulator starts to simulate the target hardware platform Component (such as the cache memory of the central processor) to obtain a performance information of the instruction stream; • the performance monitoring management module (1 〇) determines whether the performance information needs further leaves If yes, the performance information is calculated, and a calculated performance information (such as the penalty time of the acquisition error) is generated, and finally the at least one counter (3 〇) is updated with the calculated performance information (if it will be fast) The error is stored in the event counter (3 3) or the virtual execution time in the virtual time tag counter (3 χ ) is updated by using the cache error penalty time; if not, the performance information is directly stored to The at least one counter (3 〇) finally transmits the updated performance information back to the performance monitoring software for further analysis by the user. Obviously, the invention may have many Modifications and differences are therefore intended to be understood by the scope of the appended claims, and in addition to the detailed description above, the invention may be practiced in other embodiments. The foregoing is only a preferred embodiment of the invention. It has not been used to (4) to refine the invention; the equivalent changes or modifications made by the Silken in the spirit of the invention shall be included in the following application. Within the scope billion

13 201140313 [Simplified description of the drawings] The first figure is an architectural diagram of the present invention. The second figure is a detailed diagram of the present invention. The third diagram is a flow chart of the method of the present invention. The fourth figure is a flow chart of the detailed method of the present invention. [Main component symbol description] 1 Virtual performance monitoring device for system performance monitoring

Device

1 0 performance monitoring management module 1 2 performance event collection interface 1 2 2 performance data buffer 2 0 simulator 2 1 1 pipeline simulator 2 1 3 instruction cache simulator 2 2 peripheral device simulator 2 2 2 disk simulation 2 2 4 direct memory access simulator 3 1 virtual time tag counter 3 3 event counter

4 Ο 1Step A 4 0 2Step B 4 0 3Step C 1 1 Event Monitoring Directory 1 2 1 Instruction Record Buffer 1 2 3 Management Function 2 1 Micro Architecture Simulator 2 1 2 Data Cache Simulator 2 1 4 Dynamics Random Access Memory Analog 2 1 5 Bus Simulator 2 2 1 Flash Memory Simulator 2 2 3 Network Simulator 3 0 Counter 3 2 Clock Cycle Counter 14 201140313

4 〇 4 Step D 4 Ο 5 Step E 4 Ο 6 Step F

Claims (1)

201140313 VII. Patent application scope: 1. A virtual performance monitoring device for system performance monitoring, which operates on a virtual platform, which is simulated on the operating platform by an intermediary software - target hardware platform And on the virtual platform, the simulation-target soft-bribery-performance monitoring, the virtual performance monitoring device for the performance monitoring of the New Zealand includes: - the performance monitoring management module is used to receive and monitor the execution on the virtual platform The command stream and the performance monitoring command of the performance monitoring software; • at least one simulator connected to the performance monitoring management module, which simulates the target hardware according to the performance monitoring command received by the performance monitoring management module Part or all of the hardware of the platform; and at least one counter is coupled to the performance monitoring management module for storing performance information of the instruction stream executed on the virtual platform. 2. The virtual performance monitoring device for system performance monitoring as described in the scope of the patent application, wherein the performance monitoring management module comprises: - an event monitoring directory is coupled to the at least one simulator, List the monitored events 'The respective monitored events are connected to the corresponding simulators; and the performance event collection interface is linked to the event monitoring directory to calculate the data of the monitored events and update the And at least one counter data and information exchanged between the performance monitoring management module, the at least one simulator, and the at least one counter. 3. The virtual performance checking device as described in item 2 of the tw, wherein the performance event collecting interface comprises: - an instruction recording buffer, coupled to the at least _ simulator, which is used to maintain The command ά s] 201140313 is tracked to drive the at least one simulator; • the _ performance bedding buffer is coupled to the at least one simulator and the at least counter, and the side _ stores the at least the performance of the analog ϋ Information and _ efficiencies are passed to the counter and the management function is coupled to the at least one emulator and the at least counter, including a set of event dependent callback functions to manage the at least one emulation Device. 4. The virtual performance monitoring device for system performance monitoring according to claim 3, wherein the at least one simulator comprises: &quot;a micro-architecture simulator&quot; comprising at least one for simulating the An emulator of a micro-architectural component of the target hardware platform; and a peripheral device emulator comprising at least one simulator for simulating peripheral device components of the target hardware platform. 5. For the virtual Wei monitoring device of the system performance system, the micro-architecture simulator is connected with the performance monitoring management module to simulate the specific components of the target hardware platform. The method includes: a pipeline simulator connected to the event monitoring directory and corresponding to a monitored event, which is used to replace the pipeline execution of the central processor of the target hardware platform, and utilizes the above simulated force The food b progress analysis and estimate the virtual execution time and return the virtual execution time to the performance monitoring management module; a billing cache simulator, linked to the event monitoring directory, and corresponding to a monitored The event 'is used to simulate the data cache of the central processor of the target hardware platform; an instruction cache simulator is linked to the event monitoring directory and corresponds to a monitored 17 201140313 event' Her Na _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ _ Touch random access memory; and a quasi bus cis n, the monitoring system and the solution mesh material junction element, Lin threat - events are monitored, its ribs analog bus lines of the target hardware platform. 6' If you apply for the 4th or 5th item, you can use it to connect to the line-effect monitoring device. The peripheral device simulator is connected to the performance monitoring management module, including: The event monitors the directory link, and the event that is monitored by the wire is used to simulate the flash memory of the target hardware platform; a disk simulator is linked to the event monitoring directory and corresponds to - the monitored event, which is used to simulate the disk of the target hardware platform, - the network is not H, is the event-free inspection, and is used to - the monitored event, which is used to simulate the a network system of the target hardware platform; and a direct memory access simulator connected to the event monitoring directory and corresponding to a monitored event, which directly records the target hardware platform Take the device. 7. The virtual performance monitoring device for system performance monitoring according to claim 6, wherein the at least one counter comprises: - a virtual time tag counter, a side execution virtual execution time; - a clock chat H, copper Jing Cun’s number of chattering sessions; and events. The tensor is used to store performance-related events. 8. If the application of the invention is as described in item 7 of the patent application, the [201140313 includes-user interface] user adjusts the number of simulators to be activated by the user interface. 9. If the virtual performance monitoring device of the m-inspection of the first item mentioned in Item 1 is used, the effect monitoring command is a high-order language command, and the performance information includes an instruction count (instruction count) and a virtual execution time. , clocks, cache accesses, and cache misses. 10. The virtual performance monitoring device for system monitoring according to item 3 of claim 3, wherein the management function comprises: an initialization function for initializing the at least one counter; • a finalization function, Used to clear the record in the at least-counter; a push command record _ ϋ 龙 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 传送 到 到 到 到 到 到 到 到 到 到 到 到 到 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆 记忆And updating the data transfer function of the at least-counter, the rib is updating the at least one counter when the performance monitoring software wants to read at least one counter. 1. As described in the scope of the patent scope of the patent, the m-effect virtual performance monitoring device is implemented in parallel and separately to execute multiple simulators (mu test eaded simulati〇n), the overall simulation speed is equal to the speed The speed of the slow simulator. 12. If you apply for a patent scope! The virtual performance monitoring device for system performance monitoring further includes a timing device for obtaining a virtual execution time of the instruction stream, and the timing device is used to execute the standard inspection program on the target hardware platform. After the actual and virtual execution time on the virtual platform, the accuracy of the timing device is obtained by the following formula: ER=^^*i〇0% where ER represents the accuracy of the timing device, and p is the predicted value For the timing device, the standard inspection program is executed on the virtual platform - the virtual execution coffee; the ◦ is the value of it [S 19 201140313 for the timing (four) to obtain the standard inspection program in the s time standard hardware The old age - the actual execution * 'It:: set ==::=: virtual __ ^£7? = Xi=〇ll5il Κ where aER represents the flat solution rate of the device, κ _ standard check program total φ And ERi is the accuracy of the first standard inspection program. 14. A method for virtual performance monitoring for system performance monitoring, operating on a virtual platform, the virtual platform is simulated on an operating platform by an intermediary software-target hardware platform, and I simulates on the virtual platform a target software system and a performance monitoring software, the method comprising: Step A. receiving and monitoring an instruction flow executed on the virtual platform and accepting a performance monitoring command of the performance monitoring software; Step B: monitoring the software according to the performance The performance monitoring command and the instruction stream are used to simulate the soft and hardware of the specific φ to obtain a performance information; Step C: determine whether the performance information needs further calculation processing, and if yes, proceed to step D, if not, directly enter Step e: Step D: calculating the performance information, and generating a calculated performance information 'Entering step E; and Step E: storing the performance information. 15. The method for virtual performance monitoring for system performance monitoring as described in claim 14 further includes: f 20 201140313 Step F. After performing step E, transmitting the performance information to the performance monitoring software * Reference information for further monitoring and performance evaluation. • 16· The method of virtual performance monitoring for system performance monitoring as described in claim 14 or 15 of the patent scope, wherein the effect information includes: the number of instructions (丨耶丨加c(10)), virtual Execution time, number of clock cycles, number of cache accesses, and number of cache misses. 17. If you want to apply for the virtual performance monitoring method of the secret monitoring system, the step E is returned to step A after the execution of the step E is completed. φ I8. The method for virtual performance monitoring for system performance monitoring as described in item b of the patent application, wherein after the step F is completed, the process returns to step A. twenty one