d914999689
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.org Signed-off-by: Tobin 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: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org> |
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| drivers | ||
| fs | ||
| include | ||
| init | ||
| ipc | ||
| kernel | ||
| lib | ||
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| net | ||
| samples | ||
| scripts | ||
| security | ||
| sound | ||
| tools | ||
| usr | ||
| virt | ||
| .clang-format | ||
| .cocciconfig | ||
| .get_maintainer.ignore | ||
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| README | ||
README
Linux kernel
============
There are several guides for kernel developers and users. These guides can
be rendered in a number of formats, like HTML and PDF. Please read
Documentation/admin-guide/README.rst first.
In order to build the documentation, use ``make htmldocs`` or
``make pdfdocs``. The formatted documentation can also be read online at:
https://www.kernel.org/doc/html/latest/
There are various text files in the Documentation/ subdirectory,
several of them using the Restructured Text markup notation.
Please read the Documentation/process/changes.rst file, as it contains the
requirements for building and running the kernel, and information about
the problems which may result by upgrading your kernel.