perf, tools: Refactor and support interval and CSV metrics v4
[v4: Addressed all review feedback.] [v3: Addressed all review feedback. Update manpage for CSV. Various changes (see individual patches). Remove some more redundant code in printout callers.] [v2: Addressed (near) all review feedback. No manpage updates so far. Add support for --per-core metrics. Various cleanups.] [v3: Everything compiles again. Some more cleanups.] [v4: Split up abstract metrics patch into two. Fix bug with earlier patch already enabling metrics for CSV/interval. Minor cleanups. Man page is included] Currently perf stat does not support printing computed metrics for interval (-I xxx) or CSV (-x,) mode. For example IPC or TSX metrics over time are quite useful to know. This patch implements them. The main obstacle was that the metrics printing was all open coded all over the metrics computation code. The second patch refactors the metrics printing to work through call backs that can be more easily changed. This also cleans up the metrics printing significantly. The indentation is now handled through printf, no more need to manually count spaces. Then based on that it implements metrics printing for CSV and interval mode. Example output: % perf stat -I1000 -a sleep 1 # time counts unit eventsmetric multiplex 1.001301370 12020.049593 task-clock (msec) (100.00%) 1.001301370 3,952 context-switches #0.329 K/sec(100.00%) 1.001301370 69 cpu-migrations#0.006 K/sec(100.00%) 1.001301370 76 page-faults #0.006 K/sec 1.001301370386,582,789 cycles#0.032 GHz (100.00%) 1.001301370716,441,544 stalled-cycles-frontend # 185.33% frontend cycles idle (100.00%) 1.001301370 stalled-cycles-backend 1.001301370101,751,678 instructions #0.26 insn per cycle 1.001301370 #7.04 stalled cycles per insn (100.00%) 1.001301370 20,914,692 branches #1.740 M/sec(100.00%) 1.001301370 1,943,630 branch-misses #9.29% of all branches CSV mode % perf stat -x, -I1000 -a sleep 1 1.000852081,12016.143006,,task-clock 1.000852081,4457,,context-switches,12015168277,100.00,0.371,K/sec 1.000852081,50,,cpu-migrations,12014024424,100.00,0.004,K/sec 1.000852081,76,,page-faults,12013076716,100.00,0.006,K/sec 1.000852081,515854373,,cycles,12011235336,100.00,0.043,GHz 1.000852081,1030742150,,stalled-cycles-frontend,12010984057,100.00,199.81,frontend cycles idle 1.000852081,,,stalled-cycles-backend,0,100.00 1.000852081,116782495,,instructions,12011130729,100.00,0.23,insn per cycle 1.00085208112011130729,100.00,8.83,stalled cycles per insn 1.000852081,23748237,,branches,12010745125,100.00,1.976,M/sec 1.000852081,1976560,,branch-misses,12010501884,100.00,8.32,of all branches Available in git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6 perf/stat-metrics-8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
perf, tools: Refactor and support interval and CSV metrics v4
[v4: Addressed all review feedback.] [v3: Addressed all review feedback. Update manpage for CSV. Various changes (see individual patches). Remove some more redundant code in printout callers.] [v2: Addressed (near) all review feedback. No manpage updates so far. Add support for --per-core metrics. Various cleanups.] [v3: Everything compiles again. Some more cleanups.] [v4: Split up abstract metrics patch into two. Fix bug with earlier patch already enabling metrics for CSV/interval. Minor cleanups. Man page is included] Currently perf stat does not support printing computed metrics for interval (-I xxx) or CSV (-x,) mode. For example IPC or TSX metrics over time are quite useful to know. This patch implements them. The main obstacle was that the metrics printing was all open coded all over the metrics computation code. The second patch refactors the metrics printing to work through call backs that can be more easily changed. This also cleans up the metrics printing significantly. The indentation is now handled through printf, no more need to manually count spaces. Then based on that it implements metrics printing for CSV and interval mode. Example output: % perf stat -I1000 -a sleep 1 # time counts unit eventsmetric multiplex 1.001301370 12020.049593 task-clock (msec) (100.00%) 1.001301370 3,952 context-switches #0.329 K/sec(100.00%) 1.001301370 69 cpu-migrations#0.006 K/sec(100.00%) 1.001301370 76 page-faults #0.006 K/sec 1.001301370386,582,789 cycles#0.032 GHz (100.00%) 1.001301370716,441,544 stalled-cycles-frontend # 185.33% frontend cycles idle (100.00%) 1.001301370 stalled-cycles-backend 1.001301370101,751,678 instructions #0.26 insn per cycle 1.001301370 #7.04 stalled cycles per insn (100.00%) 1.001301370 20,914,692 branches #1.740 M/sec(100.00%) 1.001301370 1,943,630 branch-misses #9.29% of all branches CSV mode % perf stat -x, -I1000 -a sleep 1 1.000852081,12016.143006,,task-clock 1.000852081,4457,,context-switches,12015168277,100.00,0.371,K/sec 1.000852081,50,,cpu-migrations,12014024424,100.00,0.004,K/sec 1.000852081,76,,page-faults,12013076716,100.00,0.006,K/sec 1.000852081,515854373,,cycles,12011235336,100.00,0.043,GHz 1.000852081,1030742150,,stalled-cycles-frontend,12010984057,100.00,199.81,frontend cycles idle 1.000852081,,,stalled-cycles-backend,0,100.00 1.000852081,116782495,,instructions,12011130729,100.00,0.23,insn per cycle 1.00085208112011130729,100.00,8.83,stalled cycles per insn 1.000852081,23748237,,branches,12010745125,100.00,1.976,M/sec 1.000852081,1976560,,branch-misses,12010501884,100.00,8.32,of all branches Available in git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6 perf/stat-metrics-8 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
perf, tools: Refactor and support interval and CSV metrics v4
[v4: Addressed all review feedback.] [v3: Addressed all review feedback. Update manpage for CSV. Various changes (see individual patches). Remove some more redundant code in printout callers.] [v2: Addressed (near) all review feedback. No manpage updates so far. Add support for --per-core metrics. Various cleanups.] [v3: Everything compiles again. Some more cleanups.] Currently perf stat does not support printing computed metrics for interval (-I xxx) or CSV (-x,) mode. For example IPC or TSX metrics over time are quite useful to know. This patch implements them. The main obstacle was that the metrics printing was all open coded all over the metrics computation code. The second patch refactors the metrics printing to work through call backs that can be more easily changed. This also cleans up the metrics printing significantly. The indentation is now handled through printf, no more need to manually count spaces. Then based on that it implements metrics printing for CSV and interval mode. Example output: % perf stat -I1000 -a sleep 1 # time counts unit eventsmetric multiplex 1.001301370 12020.049593 task-clock (msec) (100.00%) 1.001301370 3,952 context-switches #0.329 K/sec(100.00%) 1.001301370 69 cpu-migrations#0.006 K/sec(100.00%) 1.001301370 76 page-faults #0.006 K/sec 1.001301370386,582,789 cycles#0.032 GHz (100.00%) 1.001301370716,441,544 stalled-cycles-frontend # 185.33% frontend cycles idle (100.00%) 1.001301370 stalled-cycles-backend 1.001301370101,751,678 instructions #0.26 insn per cycle 1.001301370 #7.04 stalled cycles per insn (100.00%) 1.001301370 20,914,692 branches #1.740 M/sec(100.00%) 1.001301370 1,943,630 branch-misses #9.29% of all branches CSV mode % perf stat -x, -I1000 -a sleep 1 1.000852081,12016.143006,,task-clock 1.000852081,4457,,context-switches,12015168277,100.00,0.371,K/sec 1.000852081,50,,cpu-migrations,12014024424,100.00,0.004,K/sec 1.000852081,76,,page-faults,12013076716,100.00,0.006,K/sec 1.000852081,515854373,,cycles,12011235336,100.00,0.043,GHz 1.000852081,1030742150,,stalled-cycles-frontend,12010984057,100.00,199.81,frontend cycles idle 1.000852081,,,stalled-cycles-backend,0,100.00 1.000852081,116782495,,instructions,12011130729,100.00,0.23,insn per cycle 1.00085208112011130729,100.00,8.83,stalled cycles per insn 1.000852081,23748237,,branches,12010745125,100.00,1.976,M/sec 1.000852081,1976560,,branch-misses,12010501884,100.00,8.32,of all branches Available in git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6 perf/stat-metrics-6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
perf, tools: Refactor and support interval and CSV metrics v4
[v4: Addressed all review feedback.] [v3: Addressed all review feedback. Update manpage for CSV. Various changes (see individual patches). Remove some more redundant code in printout callers.] [v2: Addressed (near) all review feedback. No manpage updates so far. Add support for --per-core metrics. Various cleanups.] [v3: Everything compiles again. Some more cleanups.] Currently perf stat does not support printing computed metrics for interval (-I xxx) or CSV (-x,) mode. For example IPC or TSX metrics over time are quite useful to know. This patch implements them. The main obstacle was that the metrics printing was all open coded all over the metrics computation code. The second patch refactors the metrics printing to work through call backs that can be more easily changed. This also cleans up the metrics printing significantly. The indentation is now handled through printf, no more need to manually count spaces. Then based on that it implements metrics printing for CSV and interval mode. Example output: % perf stat -I1000 -a sleep 1 # time counts unit eventsmetric multiplex 1.001301370 12020.049593 task-clock (msec) (100.00%) 1.001301370 3,952 context-switches #0.329 K/sec(100.00%) 1.001301370 69 cpu-migrations#0.006 K/sec(100.00%) 1.001301370 76 page-faults #0.006 K/sec 1.001301370386,582,789 cycles#0.032 GHz (100.00%) 1.001301370716,441,544 stalled-cycles-frontend # 185.33% frontend cycles idle (100.00%) 1.001301370 stalled-cycles-backend 1.001301370101,751,678 instructions #0.26 insn per cycle 1.001301370 #7.04 stalled cycles per insn (100.00%) 1.001301370 20,914,692 branches #1.740 M/sec(100.00%) 1.001301370 1,943,630 branch-misses #9.29% of all branches CSV mode % perf stat -x, -I1000 -a sleep 1 1.000852081,12016.143006,,task-clock 1.000852081,4457,,context-switches,12015168277,100.00,0.371,K/sec 1.000852081,50,,cpu-migrations,12014024424,100.00,0.004,K/sec 1.000852081,76,,page-faults,12013076716,100.00,0.006,K/sec 1.000852081,515854373,,cycles,12011235336,100.00,0.043,GHz 1.000852081,1030742150,,stalled-cycles-frontend,12010984057,100.00,199.81,frontend cycles idle 1.000852081,,,stalled-cycles-backend,0,100.00 1.000852081,116782495,,instructions,12011130729,100.00,0.23,insn per cycle 1.00085208112011130729,100.00,8.83,stalled cycles per insn 1.000852081,23748237,,branches,12010745125,100.00,1.976,M/sec 1.000852081,1976560,,branch-misses,12010501884,100.00,8.32,of all branches Available in git://git.kernel.org/pub/scm/linux/kernel/git/ak/linux-misc-2.6 perf/stat-metrics-6 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
