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| /openbmc/linux/tools/perf/util/ |
| H A D | thread.h | diff 1b46cddfccfec4cc67b187fb53d78198de6a057c Mon Sep 28 12:48:46 CDT 2009 Arnaldo Carvalho de Melo <acme@redhat.com> perf tools: Use rb_tree for maps
Threads can have many and kernel modules will be represented as a
tree of maps as well.
Ah, and for a perf.data with 146607 samples:
Before:
[root@doppio ~]# perf stat -r 5 perf report > /dev/null
Performance counter stats for 'perf report' (5 runs):
699.823680 task-clock-msecs # 0.991 CPUs ( +- 0.454% )
74 context-switches # 0.000 M/sec ( +- 1.709% )
2 CPU-migrations # 0.000 M/sec ( +- 17.008% )
23114 page-faults # 0.033 M/sec ( +- 0.000% )
1381257019 cycles # 1973.721 M/sec ( +- 0.290% )
1456894438 instructions # 1.055 IPC ( +- 0.007% )
18779818 cache-references # 26.835 M/sec ( +- 0.380% )
641799 cache-misses # 0.917 M/sec ( +- 1.200% )
0.705972729 seconds time elapsed ( +- 0.501% )
[root@doppio ~]#
After
Performance counter stats for 'perf report' (5 runs):
691.261451 task-clock-msecs # 0.993 CPUs ( +- 0.307% )
72 context-switches # 0.000 M/sec ( +- 0.829% )
6 CPU-migrations # 0.000 M/sec ( +- 18.409% )
23127 page-faults # 0.033 M/sec ( +- 0.000% )
1366395876 cycles # 1976.670 M/sec ( +- 0.153% )
1443136016 instructions # 1.056 IPC ( +- 0.012% )
17956402 cache-references # 25.976 M/sec ( +- 0.325% )
661924 cache-misses # 0.958 M/sec ( +- 1.335% )
0.696127275 seconds time elapsed ( +- 0.377% )
I.e. we see some speedup too.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20090928174846.GA3361@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
| H A D | thread.c | diff 1b46cddfccfec4cc67b187fb53d78198de6a057c Mon Sep 28 12:48:46 CDT 2009 Arnaldo Carvalho de Melo <acme@redhat.com> perf tools: Use rb_tree for maps
Threads can have many and kernel modules will be represented as a
tree of maps as well.
Ah, and for a perf.data with 146607 samples:
Before:
[root@doppio ~]# perf stat -r 5 perf report > /dev/null
Performance counter stats for 'perf report' (5 runs):
699.823680 task-clock-msecs # 0.991 CPUs ( +- 0.454% )
74 context-switches # 0.000 M/sec ( +- 1.709% )
2 CPU-migrations # 0.000 M/sec ( +- 17.008% )
23114 page-faults # 0.033 M/sec ( +- 0.000% )
1381257019 cycles # 1973.721 M/sec ( +- 0.290% )
1456894438 instructions # 1.055 IPC ( +- 0.007% )
18779818 cache-references # 26.835 M/sec ( +- 0.380% )
641799 cache-misses # 0.917 M/sec ( +- 1.200% )
0.705972729 seconds time elapsed ( +- 0.501% )
[root@doppio ~]#
After
Performance counter stats for 'perf report' (5 runs):
691.261451 task-clock-msecs # 0.993 CPUs ( +- 0.307% )
72 context-switches # 0.000 M/sec ( +- 0.829% )
6 CPU-migrations # 0.000 M/sec ( +- 18.409% )
23127 page-faults # 0.033 M/sec ( +- 0.000% )
1366395876 cycles # 1976.670 M/sec ( +- 0.153% )
1443136016 instructions # 1.056 IPC ( +- 0.012% )
17956402 cache-references # 25.976 M/sec ( +- 0.325% )
661924 cache-misses # 0.958 M/sec ( +- 1.335% )
0.696127275 seconds time elapsed ( +- 0.377% )
I.e. we see some speedup too.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20090928174846.GA3361@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
| H A D | event.h | diff 1b46cddfccfec4cc67b187fb53d78198de6a057c Mon Sep 28 12:48:46 CDT 2009 Arnaldo Carvalho de Melo <acme@redhat.com> perf tools: Use rb_tree for maps
Threads can have many and kernel modules will be represented as a
tree of maps as well.
Ah, and for a perf.data with 146607 samples:
Before:
[root@doppio ~]# perf stat -r 5 perf report > /dev/null
Performance counter stats for 'perf report' (5 runs):
699.823680 task-clock-msecs # 0.991 CPUs ( +- 0.454% )
74 context-switches # 0.000 M/sec ( +- 1.709% )
2 CPU-migrations # 0.000 M/sec ( +- 17.008% )
23114 page-faults # 0.033 M/sec ( +- 0.000% )
1381257019 cycles # 1973.721 M/sec ( +- 0.290% )
1456894438 instructions # 1.055 IPC ( +- 0.007% )
18779818 cache-references # 26.835 M/sec ( +- 0.380% )
641799 cache-misses # 0.917 M/sec ( +- 1.200% )
0.705972729 seconds time elapsed ( +- 0.501% )
[root@doppio ~]#
After
Performance counter stats for 'perf report' (5 runs):
691.261451 task-clock-msecs # 0.993 CPUs ( +- 0.307% )
72 context-switches # 0.000 M/sec ( +- 0.829% )
6 CPU-migrations # 0.000 M/sec ( +- 18.409% )
23127 page-faults # 0.033 M/sec ( +- 0.000% )
1366395876 cycles # 1976.670 M/sec ( +- 0.153% )
1443136016 instructions # 1.056 IPC ( +- 0.012% )
17956402 cache-references # 25.976 M/sec ( +- 0.325% )
661924 cache-misses # 0.958 M/sec ( +- 1.335% )
0.696127275 seconds time elapsed ( +- 0.377% )
I.e. we see some speedup too.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20090928174846.GA3361@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|
| /openbmc/linux/tools/perf/ |
| H A D | Makefile | diff 1b46cddfccfec4cc67b187fb53d78198de6a057c Mon Sep 28 12:48:46 CDT 2009 Arnaldo Carvalho de Melo <acme@redhat.com> perf tools: Use rb_tree for maps
Threads can have many and kernel modules will be represented as a
tree of maps as well.
Ah, and for a perf.data with 146607 samples:
Before:
[root@doppio ~]# perf stat -r 5 perf report > /dev/null
Performance counter stats for 'perf report' (5 runs):
699.823680 task-clock-msecs # 0.991 CPUs ( +- 0.454% )
74 context-switches # 0.000 M/sec ( +- 1.709% )
2 CPU-migrations # 0.000 M/sec ( +- 17.008% )
23114 page-faults # 0.033 M/sec ( +- 0.000% )
1381257019 cycles # 1973.721 M/sec ( +- 0.290% )
1456894438 instructions # 1.055 IPC ( +- 0.007% )
18779818 cache-references # 26.835 M/sec ( +- 0.380% )
641799 cache-misses # 0.917 M/sec ( +- 1.200% )
0.705972729 seconds time elapsed ( +- 0.501% )
[root@doppio ~]#
After
Performance counter stats for 'perf report' (5 runs):
691.261451 task-clock-msecs # 0.993 CPUs ( +- 0.307% )
72 context-switches # 0.000 M/sec ( +- 0.829% )
6 CPU-migrations # 0.000 M/sec ( +- 18.409% )
23127 page-faults # 0.033 M/sec ( +- 0.000% )
1366395876 cycles # 1976.670 M/sec ( +- 0.153% )
1443136016 instructions # 1.056 IPC ( +- 0.012% )
17956402 cache-references # 25.976 M/sec ( +- 0.325% )
661924 cache-misses # 0.958 M/sec ( +- 1.335% )
0.696127275 seconds time elapsed ( +- 0.377% )
I.e. we see some speedup too.
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Cc: Frédéric Weisbecker <fweisbec@gmail.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Cc: Mike Galbraith <efault@gmx.de>
Cc: "H. Peter Anvin" <hpa@zytor.com>
LKML-Reference: <20090928174846.GA3361@ghostprotocols.net>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
|