1. 16 3月, 2012 1 次提交
  2. 13 3月, 2012 6 次提交
    • I
      Merge branch 'perf/hw-branch-sampling' into perf/core · bea95c15
      Ingo Molnar 提交于
      Merge reason: The 'perf record -b' hardware branch sampling feature is ready for upstream.
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      bea95c15
    • S
      perf report: Fix annotate double quit issue in branch view mode · 24bff2dc
      Stephane Eranian 提交于
      This patch fixes perf report to not go back two levels when
      pressing the 'q' key while annotating in branch view mode.
      
      When pressing 'q' in annotate mode and if the branch source
      and target belong to different functions, perf now brings
      up the annotation popup menu again to offer the option to
      annotate the other branch source or target.
      
      As part of the code restructuring in perf_evsel__hists_browse()
      we also fix a memory leak on options[] in case of error.
      Signed-off-by: NStephane Eranian <eranian@google.com>
      Cc: peterz@infradead.org
      Cc: acme@redhat.com
      Cc: asharma@fb.com
      Cc: ravitillo@lbl.gov
      Cc: vweaver1@eecs.utk.edu
      Cc: khandual@linux.vnet.ibm.com
      Cc: dsahern@gmail.com
      Link: http://lkml.kernel.org/r/1331565210-10865-3-git-send-email-eranian@google.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
      24bff2dc
    • S
      perf report: Remove duplicate annotate choice in branch view mode · 8bcd65fd
      Stephane Eranian 提交于
      This patch removes the duplicated annotate selection when
      browsing in branch view mode. If the sym and dso oof the branch
      source and target are the same, then only one annotate choice is
      proposed.
      Signed-off-by: NStephane Eranian <eranian@google.com>
      Cc: peterz@infradead.org
      Cc: acme@redhat.com
      Cc: asharma@fb.com
      Cc: ravitillo@lbl.gov
      Cc: vweaver1@eecs.utk.edu
      Cc: khandual@linux.vnet.ibm.com
      Cc: dsahern@gmail.com
      Link: http://lkml.kernel.org/r/1331565210-10865-2-git-send-email-eranian@google.comSigned-off-by: NIngo Molnar <mingo@elte.hu>
      8bcd65fd
    • P
      perf/x86: Prettify pmu config literals · f9b4eeb8
      Peter Zijlstra 提交于
      I got somewhat tired of having to decode hex numbers..
      Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
      Acked-by: NThomas Gleixner <tglx@linutronix.de>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: Robert Richter <robert.richter@amd.com>
      Link: http://lkml.kernel.org/n/tip-0vsy1sgywc4uar3mu1szm0rg@git.kernel.orgSigned-off-by: NIngo Molnar <mingo@elte.hu>
      f9b4eeb8
    • I
      Merge branch 'perf/urgent' into perf/core · 35239e23
      Ingo Molnar 提交于
      Merge reason: We are going to queue up a dependent patch.
      Signed-off-by: NIngo Molnar <mingo@elte.hu>
      35239e23
    • P
      perf/x86: Fix local vs remote memory events for NHM/WSM · 87e24f4b
      Peter Zijlstra 提交于
      Verified using the below proglet.. before:
      
      [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
      remote write
      
       Performance counter stats for './numa 0':
      
               2,101,554 node-stores
               2,096,931 node-store-misses
      
             5.021546079 seconds time elapsed
      
      [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
      local write
      
       Performance counter stats for './numa 1':
      
                 501,137 node-stores
                     199 node-store-misses
      
             5.124451068 seconds time elapsed
      
      After:
      
      [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 0
      remote write
      
       Performance counter stats for './numa 0':
      
               2,107,516 node-stores
               2,097,187 node-store-misses
      
             5.012755149 seconds time elapsed
      
      [root@westmere ~]# perf stat -e node-stores -e node-store-misses ./numa 1
      local write
      
       Performance counter stats for './numa 1':
      
               2,063,355 node-stores
                     165 node-store-misses
      
             5.082091494 seconds time elapsed
      
      #define _GNU_SOURCE
      
      #include <sched.h>
      #include <stdio.h>
      #include <errno.h>
      #include <sys/mman.h>
      #include <sys/types.h>
      #include <dirent.h>
      #include <signal.h>
      #include <unistd.h>
      #include <numaif.h>
      #include <stdlib.h>
      
      #define SIZE (32*1024*1024)
      
      volatile int done;
      
      void sig_done(int sig)
      {
      	done = 1;
      }
      
      int main(int argc, char **argv)
      {
      	cpu_set_t *mask, *mask2;
      	size_t size;
      	int i, err, t;
      	int nrcpus = 1024;
      	char *mem;
      	unsigned long nodemask = 0x01; /* node 0 */
      	DIR *node;
      	struct dirent *de;
      	int read = 0;
      	int local = 0;
      
      	if (argc < 2) {
      		printf("usage: %s [0-3]\n", argv[0]);
      		printf("  bit0 - local/remote\n");
      		printf("  bit1 - read/write\n");
      		exit(0);
      	}
      
      	switch (atoi(argv[1])) {
      	case 0:
      		printf("remote write\n");
      		break;
      	case 1:
      		printf("local write\n");
      		local = 1;
      		break;
      	case 2:
      		printf("remote read\n");
      		read = 1;
      		break;
      	case 3:
      		printf("local read\n");
      		local = 1;
      		read = 1;
      		break;
      	}
      
      	mask = CPU_ALLOC(nrcpus);
      	size = CPU_ALLOC_SIZE(nrcpus);
      	CPU_ZERO_S(size, mask);
      
      	node = opendir("/sys/devices/system/node/node0/");
      	if (!node)
      		perror("opendir");
      	while ((de = readdir(node))) {
      		int cpu;
      
      		if (sscanf(de->d_name, "cpu%d", &cpu) == 1)
      			CPU_SET_S(cpu, size, mask);
      	}
      	closedir(node);
      
      	mask2 = CPU_ALLOC(nrcpus);
      	CPU_ZERO_S(size, mask2);
      	for (i = 0; i < size; i++)
      		CPU_SET_S(i, size, mask2);
      	CPU_XOR_S(size, mask2, mask2, mask); // invert
      
      	if (!local)
      		mask = mask2;
      
      	err = sched_setaffinity(0, size, mask);
      	if (err)
      		perror("sched_setaffinity");
      
      	mem = mmap(0, SIZE, PROT_READ|PROT_WRITE,
      			MAP_PRIVATE|MAP_ANONYMOUS, -1, 0);
      	err = mbind(mem, SIZE, MPOL_BIND, &nodemask, 8*sizeof(nodemask), MPOL_MF_MOVE);
      	if (err)
      		perror("mbind");
      
      	signal(SIGALRM, sig_done);
      	alarm(5);
      
      	if (!read) {
      		while (!done) {
      			for (i = 0; i < SIZE; i++)
      				mem[i] = 0x01;
      		}
      	} else {
      		while (!done) {
      			for (i = 0; i < SIZE; i++)
      				t += *(volatile char *)(mem + i);
      		}
      	}
      
      	return 0;
      }
      Signed-off-by: NPeter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Stephane Eranian <eranian@google.com>
      Cc: <stable@kernel.org>
      Link: http://lkml.kernel.org/n/tip-tq73sxus35xmqpojf7ootxgs@git.kernel.orgSigned-off-by: NIngo Molnar <mingo@elte.hu>
      87e24f4b
  3. 11 3月, 2012 1 次提交
  4. 10 3月, 2012 7 次提交
  5. 09 3月, 2012 24 次提交
  6. 08 3月, 2012 1 次提交