1. 05 5月, 2015 5 次提交
    • A
      perf report: Fix placement of itrace option in documentation · 64a7e61f
      Adrian Hunter 提交于
      Unwittingly the itrace options for perf report ended up below the
      Overhead Calculation section. Move it back with the other options.
      Signed-off-by: NAdrian Hunter <adrian.hunter@intel.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Frederic Weisbecker <fweisbec@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Namhyung Kim <namhyung@gmail.com>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Stephane Eranian <eranian@google.com>
      Link: http://lkml.kernel.org/r/1430404667-10593-2-git-send-email-adrian.hunter@intel.comSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      64a7e61f
    • N
      perf kmem: Add kmem.default config option · 0c160d49
      Namhyung Kim 提交于
      Currently perf kmem command will select --slab if neither --slab nor
      --page is given for backward compatibility.  Add kmem.default config
      option to select the default value ('page' or 'slab').
      
        # cat ~/.perfconfig
        [kmem]
        	default = page
      
        # perf kmem stat
      
        SUMMARY (page allocator)
        ========================
        Total allocation requests     :            1,518   [            6,096 KB ]
        Total free requests           :            1,431   [            5,748 KB ]
      
        Total alloc+freed requests    :            1,330   [            5,344 KB ]
        Total alloc-only requests     :              188   [              752 KB ]
        Total free-only requests      :              101   [              404 KB ]
      
        Total allocation failures     :                0   [                0 KB ]
        ...
      Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
      Acked-by: NPekka Enberg <penberg@kernel.org>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: Taeung Song <treeze.taeung@gmail.com>
      Cc: linux-mm@kvack.org
      Link: http://lkml.kernel.org/r/1429592107-1807-6-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      0c160d49
    • N
      perf kmem: Print gfp flags in human readable string · 0e111156
      Namhyung Kim 提交于
      Save libtraceevent output and print it in the header.
      
        # perf kmem stat --page --caller
        #
        # GFP flags
        # ---------
        # 00000010:       NI: GFP_NOIO
        # 000000d0:        K: GFP_KERNEL
        # 00000200:      NWR: GFP_NOWARN
        # 000084d0:    K|R|Z: GFP_KERNEL|GFP_REPEAT|GFP_ZERO
        # 000200d2:       HU: GFP_HIGHUSER
        # 000200da:      HUM: GFP_HIGHUSER_MOVABLE
        # 000280da:    HUM|Z: GFP_HIGHUSER_MOVABLE|GFP_ZERO
        # 002084d0: K|R|Z|NT: GFP_KERNEL|GFP_REPEAT|GFP_ZERO|GFP_NOTRACK
        # 0102005a:  NF|HW|M: GFP_NOFS|GFP_HARDWALL|GFP_MOVABLE
      
        ---------------------------------------------------------------------------------------------------------
         Total alloc (KB) | Hits      | Order | Mig.type | GFP flags | Callsite
        ---------------------------------------------------------------------------------------------------------
                       60 |        15 |     0 | UNMOVABL | K|R|Z|NT  | pte_alloc_one
                       40 |        10 |     0 |  MOVABLE | HUM|Z     | handle_mm_fault
                       24 |         6 |     0 |  MOVABLE | HUM       | do_wp_page
                       24 |         6 |     0 | UNMOVABL | K         | __pollwait
         ...
      Requested-by: NJoonsoo Kim <js1304@gmail.com>
      Suggested-by: NMinchan Kim <minchan@kernel.org>
      Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
      Acked-by: NPekka Enberg <penberg@kernel.org>
      Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: linux-mm@kvack.org
      Link: http://lkml.kernel.org/r/1429592107-1807-5-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      0e111156
    • N
      perf kmem: Add --live option for current allocation stat · 2a7ef02c
      Namhyung Kim 提交于
      Currently 'perf kmem stat --page' shows total (page) allocation stat by
      default, but sometimes one might want to see live (total alloc-only)
      requests/pages only.  The new --live option does this by subtracting freed
      allocation from the stat.
      
      E.g.:
      
       # perf kmem stat --page
      
       SUMMARY (page allocator)
       ========================
       Total allocation requests     :          988,858   [        4,045,368 KB ]
       Total free requests           :          886,484   [        3,624,996 KB ]
      
       Total alloc+freed requests    :          885,969   [        3,622,628 KB ]
       Total alloc-only requests     :          102,889   [          422,740 KB ]
       Total free-only requests      :              515   [            2,368 KB ]
      
       Total allocation failures     :                0   [                0 KB ]
      
       Order     Unmovable   Reclaimable       Movable      Reserved  CMA/Isolated
       -----  ------------  ------------  ------------  ------------  ------------
           0       172,173         3,083       806,686             .             .
           1           284             .             .             .             .
           2         6,124            58             .             .             .
           3           114           335             .             .             .
           4             .             .             .             .             .
           5             .             .             .             .             .
           6             .             .             .             .             .
           7             .             .             .             .             .
           8             .             .             .             .             .
           9             .             .             1             .             .
          10             .             .             .             .             .
       # perf kmem stat --page --live
      
       SUMMARY (page allocator)
       ========================
       Total allocation requests     :          988,858   [        4,045,368 KB ]
       Total free requests           :          886,484   [        3,624,996 KB ]
      
       Total alloc+freed requests    :          885,969   [        3,622,628 KB ]
       Total alloc-only requests     :          102,889   [          422,740 KB ]
       Total free-only requests      :              515   [            2,368 KB ]
      
       Total allocation failures     :                0   [                0 KB ]
      
       Order     Unmovable   Reclaimable       Movable      Reserved  CMA/Isolated
       -----  ------------  ------------  ------------  ------------  ------------
           0         2,214         3,025        97,156             .             .
           1            59             .             .             .             .
           2            19            58             .             .             .
           3            23           335             .             .             .
           4             .             .             .             .             .
           5             .             .             .             .             .
           6             .             .             .             .             .
           7             .             .             .             .             .
           8             .             .             .             .             .
           9             .             .             .             .             .
          10             .             .             .             .             .
       #
      Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
      Acked-by: NPekka Enberg <penberg@kernel.org>
      Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: linux-mm@kvack.org
      Link: http://lkml.kernel.org/r/1429592107-1807-4-git-send-email-namhyung@kernel.org
      [ Added examples to the changeset log ]
      Signed-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      2a7ef02c
    • N
      perf kmem: Support sort keys on page analysis · fb4f313d
      Namhyung Kim 提交于
      Add new sort keys for page: page, order, migtype, gfp - existing
      'bytes', 'hit' and 'callsite' sort keys also work for page.  Note that
      -s/--sort option should be preceded by either of --slab or --page option
      to determine where the sort keys applies.
      
      Now it properly groups and sorts allocation stats - so same
      page/caller with different order/migtype/gfp will be printed on a
      different line.
      
       # perf kmem stat --page --caller -l 10 -s order,hit
      
       -----------------------------------------------------------------------------
       Total alloc (KB) | Hits   | Order | Mig.type | GFP flags | Callsite
       -----------------------------------------------------------------------------
                     64 |      4 |     2 |  RECLAIM |  00285250 | new_slab
                 50,144 | 12,536 |     0 |  MOVABLE |  0102005a | __page_cache_alloc
                     52 |     13 |     0 | UNMOVABL |  002084d0 | pte_alloc_one
                     40 |     10 |     0 |  MOVABLE |  000280da | handle_mm_fault
                     28 |      7 |     0 | UNMOVABL |  000000d0 | __pollwait
                     20 |      5 |     0 |  MOVABLE |  000200da | do_wp_page
                     20 |      5 |     0 |  MOVABLE |  000200da | do_cow_fault
                     16 |      4 |     0 | UNMOVABL |  00000200 | __tlb_remove_page
                     16 |      4 |     0 | UNMOVABL |  000084d0 | __pmd_alloc
                      8 |      2 |     0 | UNMOVABL |  000084d0 | __pud_alloc
       ...              | ...    | ...   | ...      | ...       | ...
       -----------------------------------------------------------------------------
      Signed-off-by: NNamhyung Kim <namhyung@kernel.org>
      Acked-by: NPekka Enberg <penberg@kernel.org>
      Tested-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      Cc: David Ahern <dsahern@gmail.com>
      Cc: Jiri Olsa <jolsa@redhat.com>
      Cc: Joonsoo Kim <js1304@gmail.com>
      Cc: Minchan Kim <minchan@kernel.org>
      Cc: Peter Zijlstra <a.p.zijlstra@chello.nl>
      Cc: linux-mm@kvack.org
      Link: http://lkml.kernel.org/r/1429592107-1807-3-git-send-email-namhyung@kernel.orgSigned-off-by: NArnaldo Carvalho de Melo <acme@redhat.com>
      fb4f313d
  2. 04 5月, 2015 19 次提交
  3. 29 4月, 2015 16 次提交