1. 21 Apr, 2020 1 commit
  2. 25 Mar, 2020 1 commit
  3. 31 Jan, 2020 1 commit
  4. 12 Jul, 2019 4 commits
    • Tobin C. Harding's avatar
      tools/vm/slabinfo: add sorting info to help menu · cbf800d9
      Tobin C. Harding authored
      Passing more than one sorting option has undefined behaviour.
      
      Add an explicit statement as such to the help menu, this also has the
      advantage of highlighting all the sorting options.
      
      Link: http://lkml.kernel.org/r/20190426022622.4089-5-tobin@kernel.orgSigned-off-by: default avatarTobin C. Harding <tobin@kernel.org>
      Cc: Alexander Duyck <alexander.duyck@gmail.com>
      Cc: Brendan Gregg <brendan.d.gregg@gmail.com>,
      Cc: Christoph Lameter <cl@linux.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: Pekka Enberg <penberg@iki.fi>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      cbf800d9
    • Tobin C. Harding's avatar
      tools/vm/slabinfo: add option to sort by partial slabs · 53a83f97
      Tobin C. Harding authored
      We would like to get a better view of the level of fragmentation within
      the SLUB allocator.  Total number of partial slabs is an indicator of
      fragmentation.
      
      Add a command line option (-P | --partial) to sort the slab list by total
      number of partial slabs.
      
      Link: http://lkml.kernel.org/r/20190426022622.4089-4-tobin@kernel.orgSigned-off-by: default avatarTobin C. Harding <tobin@kernel.org>
      Cc: Alexander Duyck <alexander.duyck@gmail.com>
      Cc: Brendan Gregg <brendan.d.gregg@gmail.com>,
      Cc: Christoph Lameter <cl@linux.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: Pekka Enberg <penberg@iki.fi>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      53a83f97
    • Tobin C. Harding's avatar
      tools/vm/slabinfo: add partial slab listing to -X · 1106b205
      Tobin C. Harding authored
      We would like to see how fragmented the SLUB allocator is, one window into
      fragmentation is the total number of partial slabs.
      
      Currently `slabinfo -X` shows slabs sorted by loss and by size.  We can
      use this option to also show slabs sorted by number of partial slabs.
      
      Option '-X' can be used in conjunction with '-N' to control the number of
      slabs shown e.g.  list of top 5 slabs:
      
      	slabinfo -X -N5
      
      Add list of slabs ordered by number of partial slabs to output of
      `slabinfo -X`.
      
      Link: http://lkml.kernel.org/r/20190426022622.4089-3-tobin@kernel.orgSigned-off-by: default avatarTobin C. Harding <tobin@kernel.org>
      Cc: Alexander Duyck <alexander.duyck@gmail.com>
      Cc: Brendan Gregg <brendan.d.gregg@gmail.com>,
      Cc: Christoph Lameter <cl@linux.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: Pekka Enberg <penberg@iki.fi>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      1106b205
    • Tobin C. Harding's avatar
      tools/vm/slabinfo: order command line options · d9149996
      Tobin C. Harding authored
      During recent discussion on LKML over SLAB vs SLUB it was suggested by
      Jesper that it would be nice to have a tool to view the current
      fragmentation of the slab allocators.  CC list for this set is taken
      from that thread.
      
      For SLUB we have all the information for this already exposed by the
      kernel and also we have a userspace tool for displaying this info:
      
      	tools/vm/slabinfo.c
      
      Extend slabinfo to improve the fragmentation information by enabling
      sorting of caches by number of partial slabs.
      
      Also add cache list sorted in this manner to the output of `slabinfo -X`.
      
      This patch (of 4):
      
      get_opt() has a spurious character within the option string.  Remove it
      and reorder the options in alphabetic order so that it is easier to keep
      the options correct.  Use the same ordering for command help output and
      long option handling code.
      
      Link: http://lkml.kernel.org/r/20190426022622.4089-2-tobin@kernel.orgSigned-off-by: default avatarTobin C. Harding <tobin@kernel.org>
      Cc: Jesper Dangaard Brouer <brouer@redhat.com>
      Cc: Pekka Enberg <penberg@iki.fi>
      Cc: Vlastimil Babka <vbabka@suse.cz>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Qian Cai <cai@lca.pw>
      Cc: Mel Gorman <mgorman@techsingularity.net>
      Cc: Alexander Duyck <alexander.duyck@gmail.com>
      Cc: Michal Hocko <mhocko@kernel.org>
      Cc: Brendan Gregg <brendan.d.gregg@gmail.com>,
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      d9149996
  5. 05 Jun, 2019 2 commits
  6. 06 Mar, 2019 5 commits
  7. 09 Jan, 2019 1 commit
  8. 28 Dec, 2018 1 commit
  9. 04 Sep, 2018 2 commits
  10. 17 Aug, 2018 2 commits
  11. 08 Jun, 2018 1 commit
  12. 21 Feb, 2018 1 commit
    • Martin Kelly's avatar
      tools: fix cross-compile var clobbering · 7ed1c190
      Martin Kelly authored
      Currently a number of Makefiles break when used with toolchains that
      pass extra flags in CC and other cross-compile related variables (such
      as --sysroot).
      
      Thus we get this error when we use a toolchain that puts --sysroot in
      the CC var:
      
        ~/src/linux/tools$ make iio
        [snip]
        iio_event_monitor.c:18:10: fatal error: unistd.h: No such file or directory
          #include <unistd.h>
                   ^~~~~~~~~~
      
      This occurs because we clobber several env vars related to
      cross-compiling with lines like this:
      
        CC = $(CROSS_COMPILE)gcc
      
      Although this will point to a valid cross-compiler, we lose any extra
      flags that might exist in the CC variable, which can break toolchains
      that rely on them (for example, those that use --sysroot).
      
      This easily shows up using a Yocto SDK:
      
        $ . [snip]/sdk/environment-setup-cortexa8hf-neon-poky-linux-gnueabi
      
        $ echo $CC
        arm-poky-linux-gnueabi-gcc -march=armv7-a -mfpu=neon -mfloat-abi=hard
        -mcpu=cortex-a8
        --sysroot=[snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi
      
        $ echo $CROSS_COMPILE
        arm-poky-linux-gnueabi-
      
        $ echo ${CROSS_COMPILE}gcc
        krm-poky-linux-gnueabi-gcc
      
      Although arm-poky-linux-gnueabi-gcc is a cross-compiler, we've lost the
      --sysroot and other flags that enable us to find the right libraries to
      link against, so we can't find unistd.h and other libraries and headers.
      Normally with the --sysroot flag we would find unistd.h in the sdk
      directory in the sysroot:
      
        $ find [snip]/sdk/sysroots -path '*/usr/include/unistd.h'
        [snip]/sdk/sysroots/cortexa8hf-neon-poky-linux-gnueabi/usr/include/unistd.h
      
      The perf Makefile adds CC = $(CROSS_COMPILE)gcc if and only if CC is not
      already set, and it compiles correctly with the above toolchain.
      
      So, generalize the logic that perf uses in the common Makefile and
      remove the manual CC = $(CROSS_COMPILE)gcc lines from each Makefile.
      
      Note that this patch does not fix cross-compile for all the tools (some
      have other bugs), but it does fix it for all except usb and acpi, which
      still have other unrelated issues.
      
      I tested both with and without the patch on native and cross-build and
      there appear to be no regressions.
      
      Link: http://lkml.kernel.org/r/20180107214028.23771-1-martin@martingkelly.comSigned-off-by: default avatarMartin Kelly <martin@martingkelly.com>
      Acked-by: default avatarMark Brown <broonie@kernel.org>
      Cc: Tejun Heo <tj@kernel.org>
      Cc: Li Zefan <lizefan@huawei.com>
      Cc: Johannes Weiner <hannes@cmpxchg.org>
      Cc: Linus Walleij <linus.walleij@linaro.org>
      Cc: "K. Y. Srinivasan" <kys@microsoft.com>
      Cc: Haiyang Zhang <haiyangz@microsoft.com>
      Cc: Stephen Hemminger <sthemmin@microsoft.com>
      Cc: Jonathan Cameron <jic23@kernel.org>
      Cc: Pali Rohar <pali.rohar@gmail.com>
      Cc: Richard Purdie <rpurdie@rpsys.net>
      Cc: Jacek Anaszewski <jacek.anaszewski@gmail.com>
      Cc: Pavel Machek <pavel@ucw.cz>
      Cc: Peter Zijlstra <peterz@infradead.org>
      Cc: Ingo Molnar <mingo@redhat.com>
      Cc: Arnaldo Carvalho de Melo <acme@kernel.org>
      Cc: Robert Moore <robert.moore@intel.com>
      Cc: Lv Zheng <lv.zheng@intel.com>
      Cc: "Rafael J. Wysocki" <rafael.j.wysocki@intel.com>
      Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
      Cc: Valentina Manea <valentina.manea.m@gmail.com>
      Cc: Shuah Khan <shuah@kernel.org>
      Cc: Mario Limonciello <mario.limonciello@dell.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      7ed1c190
  13. 01 Feb, 2018 1 commit
  14. 15 Dec, 2017 1 commit
  15. 16 Nov, 2017 1 commit
  16. 02 Nov, 2017 1 commit
    • Greg Kroah-Hartman's avatar
      License cleanup: add SPDX GPL-2.0 license identifier to files with no license · b2441318
      Greg Kroah-Hartman authored
      Many source files in the tree are missing licensing information, which
      makes it harder for compliance tools to determine the correct license.
      
      By default all files without license information are under the default
      license of the kernel, which is GPL version 2.
      
      Update the files which contain no license information with the 'GPL-2.0'
      SPDX license identifier.  The SPDX identifier is a legally binding
      shorthand, which can be used instead of the full boiler plate text.
      
      This patch is based on work done by Thomas Gleixner and Kate Stewart and
      Philippe Ombredanne.
      
      How this work was done:
      
      Patches were generated and checked against linux-4.14-rc6 for a subset of
      the use cases:
       - file had no licensing information it it.
       - file was a */uapi/* one with no licensing information in it,
       - file was a */uapi/* one with existing licensing information,
      
      Further patches will be generated in subsequent months to fix up cases
      where non-standard license headers were used, and references to license
      had to be inferred by heuristics based on keywords.
      
      The analysis to determine which SPDX License Identifier to be applied to
      a file was done in a spreadsheet of side by side results from of the
      output of two independent scanners (ScanCode & Windriver) producing SPDX
      tag:value files created by Philippe Ombredanne.  Philippe prepared the
      base worksheet, and did an initial spot review of a few 1000 files.
      
      The 4.13 kernel was the starting point of the analysis with 60,537 files
      assessed.  Kate Stewart did a file by file comparison of the scanner
      results in the spreadsheet to determine which SPDX license identifier(s)
      to be applied to the file. She confirmed any determination that was not
      immediately clear with lawyers working with the Linux Foundation.
      
      Criteria used to select files for SPDX license identifier tagging was:
       - Files considered eligible had to be source code files.
       - Make and config files were included as candidates if they contained >5
         lines of source
       - File already had some variant of a license header in it (even if <5
         lines).
      
      All documentation files were explicitly excluded.
      
      The following heuristics were used to determine which SPDX license
      identifiers to apply.
      
       - when both scanners couldn't find any license traces, file was
         considered to have no license information in it, and the top level
         COPYING file license applied.
      
         For non */uapi/* files that summary was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0                                              11139
      
         and resulted in the first patch in this series.
      
         If that file was a */uapi/* path one, it was "GPL-2.0 WITH
         Linux-syscall-note" otherwise it was "GPL-2.0".  Results of that was:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|-------
         GPL-2.0 WITH Linux-syscall-note                        930
      
         and resulted in the second patch in this series.
      
       - if a file had some form of licensing information in it, and was one
         of the */uapi/* ones, it was denoted with the Linux-syscall-note if
         any GPL family license was found in the file or had no licensing in
         it (per prior point).  Results summary:
      
         SPDX license identifier                            # files
         ---------------------------------------------------|------
         GPL-2.0 WITH Linux-syscall-note                       270
         GPL-2.0+ WITH Linux-syscall-note                      169
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-2-Clause)    21
         ((GPL-2.0 WITH Linux-syscall-note) OR BSD-3-Clause)    17
         LGPL-2.1+ WITH Linux-syscall-note                      15
         GPL-1.0+ WITH Linux-syscall-note                       14
         ((GPL-2.0+ WITH Linux-syscall-note) OR BSD-3-Clause)    5
         LGPL-2.0+ WITH Linux-syscall-note                       4
         LGPL-2.1 WITH Linux-syscall-note                        3
         ((GPL-2.0 WITH Linux-syscall-note) OR MIT)              3
         ((GPL-2.0 WITH Linux-syscall-note) AND MIT)             1
      
         and that resulted in the third patch in this series.
      
       - when the two scanners agreed on the detected license(s), that became
         the concluded license(s).
      
       - when there was disagreement between the two scanners (one detected a
         license but the other didn't, or they both detected different
         licenses) a manual inspection of the file occurred.
      
       - In most cases a manual inspection of the information in the file
         resulted in a clear resolution of the license that should apply (and
         which scanner probably needed to revisit its heuristics).
      
       - When it was not immediately clear, the license identifier was
         confirmed with lawyers working with the Linux Foundation.
      
       - If there was any question as to the appropriate license identifier,
         the file was flagged for further research and to be revisited later
         in time.
      
      In total, over 70 hours of logged manual review was done on the
      spreadsheet to determine the SPDX license identifiers to apply to the
      source files by Kate, Philippe, Thomas and, in some cases, confirmation
      by lawyers working with the Linux Foundation.
      
      Kate also obtained a third independent scan of the 4.13 code base from
      FOSSology, and compared selected files where the other two scanners
      disagreed against that SPDX file, to see if there was new insights.  The
      Windriver scanner is based on an older version of FOSSology in part, so
      they are related.
      
      Thomas did random spot checks in about 500 files from the spreadsheets
      for the uapi headers and agreed with SPDX license identifier in the
      files he inspected. For the non-uapi files Thomas did random spot checks
      in about 15000 files.
      
      In initial set of patches against 4.14-rc6, 3 files were found to have
      copy/paste license identifier errors, and have been fixed to reflect the
      correct identifier.
      
      Additionally Philippe spent 10 hours this week doing a detailed manual
      inspection and review of the 12,461 patched files from the initial patch
      version early this week with:
       - a full scancode scan run, collecting the matched texts, detected
         license ids and scores
       - reviewing anything where there was a license detected (about 500+
         files) to ensure that the applied SPDX license was correct
       - reviewing anything where there was no detection but the patch license
         was not GPL-2.0 WITH Linux-syscall-note to ensure that the applied
         SPDX license was correct
      
      This produced a worksheet with 20 files needing minor correction.  This
      worksheet was then exported into 3 different .csv files for the
      different types of files to be modified.
      
      These .csv files were then reviewed by Greg.  Thomas wrote a script to
      parse the csv files and add the proper SPDX tag to the file, in the
      format that the file expected.  This script was further refined by Greg
      based on the output to detect more types of files automatically and to
      distinguish between header and source .c files (which need different
      comment types.)  Finally Greg ran the script using the .csv files to
      generate the patches.
      Reviewed-by: default avatarKate Stewart <kstewart@linuxfoundation.org>
      Reviewed-by: default avatarPhilippe Ombredanne <pombredanne@nexb.com>
      Reviewed-by: default avatarThomas Gleixner <tglx@linutronix.de>
      Signed-off-by: default avatarGreg Kroah-Hartman <gregkh@linuxfoundation.org>
      b2441318
  17. 23 Feb, 2017 1 commit
  18. 26 Jul, 2016 1 commit
  19. 23 Jul, 2016 1 commit
  20. 25 Jun, 2016 1 commit
  21. 17 Mar, 2016 3 commits
  22. 15 Mar, 2016 1 commit
  23. 21 Nov, 2015 1 commit
  24. 06 Nov, 2015 5 commits
    • Sergey Senozhatsky's avatar
      tools/vm/slabinfo: gnuplot slabifo extended stat · 4a981abd
      Sergey Senozhatsky authored
      GNUplot `slabinfo -X' stats, collected, for example, using the
      following command:
        while [ 1 ]; do slabinfo -X >> stats; sleep 1; done
      
      `slabinfo-gnuplot.sh stats' pre-processes collected records
      and generate graphs (totals, slabs sorted by size, slabs
      sorted by size).
      
      Graphs can be [individually] regenerate with different samples
      range and graph width-heigh (-r %d,%d and -s %d,%d options).
      
      To visually compare N `totals' graphs:
        slabinfo-gnuplot.sh -t FILE1-totals FILE2-totals ... FILEN-totals
      Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      4a981abd
    • Sergey Senozhatsky's avatar
      tools/vm/slabinfo: cosmetic globals cleanup · 2cee611a
      Sergey Senozhatsky authored
      checkpatch.pl complains about globals being explicitly zeroed
      out: "ERROR: do not initialise globals to 0 or NULL".
      
      New globals, introduced in this patch set, have no explicit 0
      initialization; clean up the old ones to make it less hairy.
      Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      2cee611a
    • Sergey Senozhatsky's avatar
      tools/vm/slabinfo: output sizes in bytes · a8ea0bf1
      Sergey Senozhatsky authored
      Introduce "-B|--Bytes" opt to disable store_size() dynamic
      size scaling and report size in bytes instead.
      
      This `expands' the interface a bit, it's impossible to use
      printf("%6s") anymore to output sizes.
      
      Example:
      
      slabinfo -X -N 2
       Slabcache Totals
       ----------------
       Slabcaches :              91   Aliases  :         119->69   Active:     63
       Memory used:       199798784   # Loss   :        10689376   MRatio:     5%
       # Objects  :          324301   # PartObj:           18151   ORatio:     5%
      
       Per Cache         Average              Min              Max            Total
       ----------------------------------------------------------------------------
       #Objects             5147                1            89068           324301
       #Slabs                199                1             3886            12537
       #PartSlab              12                0              240              778
       %PartSlab             32%               0%             100%               6%
       PartObjs                5                0             4569            18151
       % PartObj             26%               0%             100%               5%
       Memory            3171409             8192        127336448        199798784
       Used              3001736              160        121429728        189109408
       Loss               169672                0          5906720         10689376
      
       Per Object        Average              Min              Max
       -----------------------------------------------------------
       Memory                585                8             8192
       User                  583                8             8192
       Loss                    2                0               64
      
       Slabs sorted by size
       --------------------
       Name                   Objects Objsize           Space Slabs/Part/Cpu  O/S O %Fr %Ef Flg
       ext4_inode_cache         69948    1736       127336448      3871/0/15   18 3   0  95 a
       dentry                   89068     288        26058752      3164/0/17   28 1   0  98 a
      
       Slabs sorted by loss
       --------------------
       Name                   Objects Objsize            Loss Slabs/Part/Cpu  O/S O %Fr %Ef Flg
       ext4_inode_cache         69948    1736         5906720      3871/0/15   18 3   0  95 a
       inode_cache              11628     864          537472        642/0/4   18 2   0  94 a
      
      Besides, store_size() does not use powers of two for G/M/K
      
          if (value > 1000000000UL) {
                  divisor = 100000000UL;
                  trailer = 'G';
          } else if (value > 1000000UL) {
                  divisor = 100000UL;
                  trailer = 'M';
          } else if (value > 1000UL) {
                  divisor = 100;
                  trailer = 'K';
          }
      Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      a8ea0bf1
    • Sergey Senozhatsky's avatar
      tools/vm/slabinfo: introduce extended totals mode · 016c6cdf
      Sergey Senozhatsky authored
      Add "-X|--Xtotals" opt to output extended totals summary,
      which includes:
      -- totals summary
      -- slabs sorted by size
      -- slabs sorted by loss (waste)
      
      Example:
      =======
      
      slabinfo --X -N 1
        Slabcache Totals
        ----------------
        Slabcaches :  91      Aliases  : 120->69  Active:  65
        Memory used: 568.3M   # Loss   :  30.4M   MRatio:     5%
        # Objects  : 920.1K   # PartObj: 161.2K   ORatio:    17%
      
        Per Cache    Average         Min         Max       Total
        ---------------------------------------------------------
        #Objects       14.1K           1      227.8K      920.1K
        #Slabs           533           1       11.7K       34.7K
        #PartSlab         86           0        4.3K        5.6K
        %PartSlab        24%          0%        100%         16%
        PartObjs          17           0      129.3K      161.2K
        % PartObj        17%          0%        100%         17%
        Memory          8.7M        8.1K      384.7M      568.3M
        Used            8.2M         160      366.5M      537.9M
        Loss          468.8K           0       18.2M       30.4M
      
        Per Object   Average         Min         Max
        ---------------------------------------------
        Memory           587           8        8.1K
        User             584           8        8.1K
        Loss               2           0          64
      
        Slabs sorted by size
        ----------------------
        Name                   Objects Objsize    Space Slabs/Part/Cpu  O/S O %Fr %Ef Flg
        ext4_inode_cache        211142    1736   384.7M    11732/40/10   18 3   0  95 a
      
        Slabs sorted by loss
        ----------------------
        Name                   Objects Objsize    Loss Slabs/Part/Cpu  O/S O %Fr %Ef Flg
        ext4_inode_cache        211142    1736    18.2M    11732/40/10   18 3   0  95 a
      Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      016c6cdf
    • Sergey Senozhatsky's avatar
      tools/vm/slabinfo: fix alternate opts names · 0d00bf58
      Sergey Senozhatsky authored
      Fix mismatches between usage() output and real opts[] options.  Add
      missing alternative opt names, e.g., '-S' had no '--Size' opts[] entry,
      etc.
      Signed-off-by: default avatarSergey Senozhatsky <sergey.senozhatsky@gmail.com>
      Cc: Christoph Lameter <cl@linux.com>
      Cc: Pekka Enberg <penberg@kernel.org>
      Cc: David Rientjes <rientjes@google.com>
      Cc: Joonsoo Kim <iamjoonsoo.kim@lge.com>
      Signed-off-by: default avatarAndrew Morton <akpm@linux-foundation.org>
      Signed-off-by: default avatarLinus Torvalds <torvalds@linux-foundation.org>
      0d00bf58