/tools/perf/Documentation/perf-kmem.txt

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  1. perf-kmem(1)
    2. 

  2. ==============
    3. 

  3. 

  4. NAME
    5. 

  5. ----
    6. 

  6. perf-kmem - Tool to trace/measure kernel memory(slab) properties
    7. 

  7. 

  8. SYNOPSIS
    9. 

  9. --------
    10. 

  10. [verse]
    11. 

  11. 'perf kmem' {record|stat} [<options>]
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  12. 

  13. DESCRIPTION
    14. 

  14. -----------
    15. 

  15. There are two variants of perf kmem:
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  16. 

  17.   'perf kmem record <command>' to record the kmem events
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  18.   of an arbitrary workload.
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  19. 

  20.   'perf kmem stat' to report kernel memory statistics.
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  21. 

  22. OPTIONS
    23. 

  23. -------
    24. 

  24. -i <file>::
    25. 

  25. --input=<file>::
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  26. 	Select the input file (default: perf.data)
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  27. 

  28. --caller::
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  29. 	Show per-callsite statistics
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  30. 

  31. --alloc::
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  32. 	Show per-allocation statistics
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  33. 

  34. -s <key[,key2...]>::
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  35. --sort=<key[,key2...]>::
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  36. 	Sort the output (default: frag,hit,bytes)
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  37. 

  38. -l <num>::
    39. 

  39. --line=<num>::
    40. 

  40. 	Print n lines only
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  41. 

  42. --raw-ip::
    43. 

  43. 	Print raw ip instead of symbol
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  44. 

  45. SEE ALSO
    46. 

  46. --------
    47. 

  47. linkperf:perf-record[1]
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