linux-kernel - [PATCH 0/4] tools/vm/slabinfo: Add fragmentation output

lists.openwall.net		lists / announce owl-users owl-dev john-users john-dev passwdqc-users yescrypt popa3d-users / oss-security kernel-hardening musl sabotage tlsify passwords / crypt-dev xvendor / Bugtraq Full-Disclosure linux-kernel linux-netdev linux-ext4 linux-hardening linux-cve-announce PHC
Open Source and information security mailing list archives

Hash Suite: Windows password security audit tool. GUI, reports in PDF.

[<prev] [next>] [thread-next>] [day] [month] [year] [list]

Message-Id: <20190426022622.4089-1-tobin@kernel.org>
Date:   Fri, 26 Apr 2019 12:26:18 +1000
From:   "Tobin C. Harding" <tobin@...nel.org>
To:     Andrew Morton <akpm@...ux-foundation.org>
Cc:     "Tobin C. Harding" <tobin@...nel.org>,
        Jesper Dangaard Brouer <brouer@...hat.com>,
        Pekka Enberg <penberg@....fi>,
        Vlastimil Babka <vbabka@...e.cz>,
        Christoph Lameter <cl@...ux.com>,
        David Rientjes <rientjes@...gle.com>,
        Joonsoo Kim <iamjoonsoo.kim@....com>,
        Tejun Heo <tj@...nel.org>, Qian Cai <cai@....pw>,
        Linus Torvalds <torvalds@...ux-foundation.org>,
        Mel Gorman <mgorman@...hsingularity.net>,
        Alexander Duyck <alexander.duyck@...il.com>,
        Michal Hocko <mhocko@...nel.org>,
        Brendan Gregg <brendan.d.gregg@...il.com>, linux-mm@...ck.org,
        netdev@...r.kernel.org, linux-kernel@...r.kernel.org
Subject: [PATCH 0/4] tools/vm/slabinfo: Add fragmentation output

Hi,

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`.

thanks,
Tobin.

Tobin C. Harding (4):
  tools/vm/slabinfo: Order command line options
  tools/vm/slabinfo: Add partial slab listing to -X
  tools/vm/slabinfo: Add option to sort by partial slabs
  tools/vm/slabinfo: Add sorting info to help menu

 tools/vm/slabinfo.c | 118 ++++++++++++++++++++++++++------------------
 1 file changed, 70 insertions(+), 48 deletions(-)

-- 
2.21.0