From: Theodore Ts'o <tytso@mit.edu>
To: James Hartshorn <jhartshorn@connexity.com>
Cc: "Bridgman, John" <John.Bridgman@amd.com>,
"linux-mm@kvack.org" <linux-mm@kvack.org>
Subject: Re: Can we disable transparent hugepages for lack of a legitimate use case please?
Date: Mon, 24 Aug 2015 19:20:15 -0400 [thread overview]
Message-ID: <20150824232015.GA11651@thunk.org> (raw)
In-Reply-To: <BLUPR02MB1698B29C7908833FA1364C8ACD620@BLUPR02MB1698.namprd02.prod.outlook.com>
Part of the problem with asking "Does anyone use THP" is that a lot of
people may be using THP without realizing it. That is, after all, the
whole point.
Some selected bits from running the command:
sudo grep -e AnonHugePages /proc/*/smaps | awk '{ if($2>4) print $0} ' | awk -F "/" '{print $0; system("ps -fp " $3)} '
/proc/17297/smaps:AnonHugePages: 290816 kB
UID PID PPID C STIME TTY TIME CMD
tytso 17297 17290 4 19:10 pts/6 00:00:05 qemu-system-x86_64 -enable-kvm -boo
/proc/2467/smaps:AnonHugePages: 92160 kB
UID PID PPID C STIME TTY TIME CMD
tytso 2467 2347 0 09:49 ? 00:00:10 xfdesktop --display :0.0 --sm-clien
/proc/13446/smaps:AnonHugePages: 81920 kB
UID PID PPID C STIME TTY TIME CMD
tytso 13446 2591 0 12:25 pts/0 00:00:11 mutt -f /home/tytso/imap/shared.mit
/proc/2603/smaps:AnonHugePages: 43008 kB
UID PID PPID C STIME TTY TIME CMD
tytso 2603 2347 0 09:49 ? 00:00:01 /usr/bin/perl /usr/bin/parcimonie
/proc/9853/smaps:AnonHugePages: 20480 kB
UID PID PPID C STIME TTY TIME CMD
tytso 9853 2461 1 09:56 ? 00:07:01 /opt/google/chrome-beta/chrome --us
/proc/1622/smaps:AnonHugePages: 14336 kB
UID PID PPID C STIME TTY TIME CMD
root 1622 1567 0 09:49 tty7 00:03:09 /usr/bin/X :0 -seat seat0 -auth /va
Cheers,
- Ted
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next prev parent reply other threads:[~2015-08-24 23:20 UTC|newest]
Thread overview: 14+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-24 20:12 Can we disable transparent hugepages for lack of a legitimate use case please? James Hartshorn
2015-08-24 20:20 ` Bridgman, John
2015-08-24 20:46 ` James Hartshorn
2015-08-24 23:20 ` Theodore Ts'o [this message]
2015-09-10 16:45 ` Andrea Arcangeli
2015-09-10 17:02 ` Andres Freund
2015-09-14 12:37 ` Vlastimil Babka
2015-08-25 9:25 ` Konstantin Khlebnikov
2015-08-25 9:56 ` Vlastimil Babka
2015-09-01 22:26 ` David Rientjes
2015-09-02 8:55 ` Konstantin Khlebnikov
2015-09-02 9:06 ` Vlastimil Babka
2015-09-09 22:05 ` Andrea Arcangeli
2015-09-03 19:33 ` Andi Kleen
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