Gentoo Archives: gentoo-user

From: Kent Fredric <kentnl@g.o>
To: gentoo-user@l.g.o
Subject: Re: [gentoo-user] tmp on tmpfs
Date: Thu, 25 May 2017 22:37:11
Message-Id: 20170526103640.4bc8b4e5@katipo2.lan
In Reply to: Re: [gentoo-user] tmp on tmpfs by Andrew Savchenko
1 On Wed, 24 May 2017 15:45:45 +0300
2 Andrew Savchenko <bircoph@g.o> wrote:
3
4 > - smaller CPU overhead: not every i/o is being compressed, e.g. if
5 > there is sill enough RAM available it is used without compression
6 > overhead as usual, but if memory is not enough, swapped out pages
7 > are being compressed instead of swapping out to disk;
8
9 I found the opposite problem somehow. CPU started becomming frequently pegged
10 in zswap for no obvious reason, while the underlying IO that zswap was doing
11 was only measurable in kb/s , far, far, far below the noise thresholds and
12 by no means a strain on even my crappy spinning rust based swap.
13
14 And to add to that, zswap introduced general protection faults and kernel panics.
15
16 So nah, I'm glad I turned that off, it was a huge mistake.

Replies

Subject Author
Re: [gentoo-user] tmp on tmpfs Mick <michaelkintzios@×××××.com>