JPS6433653A - Collecting system for trace information - Google Patents

Collecting system for trace information

Info

Publication number
JPS6433653A
JPS6433653A JP62190991A JP19099187A JPS6433653A JP S6433653 A JPS6433653 A JP S6433653A JP 62190991 A JP62190991 A JP 62190991A JP 19099187 A JP19099187 A JP 19099187A JP S6433653 A JPS6433653 A JP S6433653A
Authority
JP
Japan
Prior art keywords
frame
trace information
trace
caused
retry
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP62190991A
Other languages
Japanese (ja)
Inventor
Koichiro Ryu
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Fujitsu Ltd
Original Assignee
Fujitsu Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Fujitsu Ltd filed Critical Fujitsu Ltd
Priority to JP62190991A priority Critical patent/JPS6433653A/en
Publication of JPS6433653A publication Critical patent/JPS6433653A/en
Pending legal-status Critical Current

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  • Maintenance And Management Of Digital Transmission (AREA)
  • Debugging And Monitoring (AREA)
  • Computer And Data Communications (AREA)

Abstract

PURPOSE:To reduce the quantity of information on the multi-address tracing operation by excluding the duplex frames like the UP frames, etc., caused by the retry carried out at the multi-address communication out of the trace collecting objects. CONSTITUTION:A trace function part 6 reads the trace information out of the position of a trace buffer 7 pointed by a pointer 8 and checks whether the frame transmitted and received right before read-out of the trace information is coincident on not with the frame transmitted and received this time and also with a prescribed frame of a different type, e.g., a transmission right transfer frame (UP frame). When so, it is decided that the frame transmitted and received this time is equal to that caused by the retry and no trace information is produced. When not, the trace information is produced and +1 is given to the contents of the pointer 8 to write the produced trace information. Thus it is possible to prevent the increase of the trace information quantity caused by the repetition of such a frame as that caused by the retry of the UP frame having no relation with the actual processing.
JP62190991A 1987-07-30 1987-07-30 Collecting system for trace information Pending JPS6433653A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62190991A JPS6433653A (en) 1987-07-30 1987-07-30 Collecting system for trace information

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62190991A JPS6433653A (en) 1987-07-30 1987-07-30 Collecting system for trace information

Publications (1)

Publication Number Publication Date
JPS6433653A true JPS6433653A (en) 1989-02-03

Family

ID=16267046

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62190991A Pending JPS6433653A (en) 1987-07-30 1987-07-30 Collecting system for trace information

Country Status (1)

Country Link
JP (1) JPS6433653A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218236A (en) * 1990-10-10 1993-06-08 Nippondenso Co., Ltd. Output circuit having an integrated circuit with a plurality of output transistors connected to an external elements
JP2011035764A (en) * 2009-08-04 2011-02-17 Canon Inc Data processing apparatus, control method, and program

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5218236A (en) * 1990-10-10 1993-06-08 Nippondenso Co., Ltd. Output circuit having an integrated circuit with a plurality of output transistors connected to an external elements
JP2011035764A (en) * 2009-08-04 2011-02-17 Canon Inc Data processing apparatus, control method, and program

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