public inbox for [email protected]
 help / color / mirror / Atom feed
From: Sedat Dilek <[email protected]>
To: Jens Axboe <[email protected]>
Cc: [email protected], [email protected],
	[email protected], [email protected],
	[email protected]
Subject: Re: [PATCHSET v5 0/12] Add support for async buffered reads
Date: Sat, 30 May 2020 15:36:37 +0200	[thread overview]
Message-ID: <CA+icZUVJT8X3zyafrgbkJppsp4nJEKaLjYNs1kX8H+aY1Y10Qw@mail.gmail.com> (raw)
In-Reply-To: <CA+icZUUwz5TPpT_zS=P4MZBDzzrAcFvZMUce8mJu8M1C7KNO5A@mail.gmail.com>

> Time to experience with ZRAM :-).

I switched over from swap-file to zramswap.

And I can definitely say, my last kernel w/o your patchset does not
show the symptoms.

# cat systemd-analyze-time_5.7.0-rc7-2-amd64-clang_2nd-try.txt
Startup finished in 6.129s (kernel) + 44.192s (userspace) = 50.322s
graphical.target reached after 44.168s in userspace

# cat systemd-analyze-blame_5.7.0-rc7-2-amd64-clang_2nd-try.txt
24.050s udisks2.service
23.711s accounts-daemon.service
18.615s dev-sdc2.device
17.119s polkit.service
16.980s avahi-daemon.service
16.879s NetworkManager.service
16.112s rtkit-daemon.service
15.126s switcheroo-control.service
15.117s wpa_supplicant.service
15.105s systemd-logind.service
14.475s NetworkManager-wait-online.service
14.258s smartmontools.service
13.161s zramswap.service
 9.522s rsyslog.service
 8.337s gpm.service
 6.026s packagekit.service
 5.871s ModemManager.service
 5.746s networking.service
 5.383s e2scrub_reap.service
 3.960s systemd-udevd.service
 3.396s apparmor.service
 3.231s exim4.service
 2.795s systemd-journal-flush.service
 2.359s alsa-restore.service
 2.186s systemd-rfkill.service
 1.878s atd.service
 1.164s keyboard-setup.service
 1.098s bluetooth.service
 1.089s systemd-tmpfiles-setup.service
 1.021s pppd-dns.service
  968ms systemd-backlight@backlight:intel_backlight.service
  964ms upower.service
  937ms binfmt-support.service
  873ms systemd-modules-load.service
  849ms systemd-sysusers.service
  845ms systemd-journald.service
  683ms systemd-timesyncd.service
  676ms [email protected]
  641ms systemd-udev-trigger.service
  620ms dev-hugepages.mount
  618ms dev-mqueue.mount
  618ms sys-kernel-debug.mount
  617ms sys-kernel-tracing.mount
  501ms ifupdown-wait-online.service
  434ms systemd-sysctl.service
  419ms systemd-random-seed.service
  413ms systemd-tmpfiles-setup-dev.service
  405ms [email protected]
  389ms systemd-remount-fs.service
  383ms console-setup.service
  301ms kmod-static-nodes.service
  181ms proc-sys-fs-binfmt_misc.mount
  174ms systemd-update-utmp.service
   85ms systemd-user-sessions.service
   22ms [email protected]
   19ms systemd-update-utmp-runlevel.service
    5ms ifupdown-pre.service
    4ms sys-fs-fuse-connections.mount

[ /etc/zramswap.conf ]

ZRAM_SIZE_PERCENT=20
# ZSTD support for ZRAM and ZSWAP requires Linux >= 5.7-rc+. -dileks
ZRAM_COMPRESSION_ALGO=zstd

[ /etc/fstab ]

# /etc/fstab: static file system information.
#
# Use 'blkid' to print the universally unique identifier for a
# device; this may be used with UUID= as a more robust way to name devices
# that works even if disks are added and removed. See fstab(5).
#
# <file system> || <mount point> || <type> || <options> || <dump> || <pass>
#
# Root-FS (here: /dev/sdc2)
UUID=<myUUID>       /       ext4    errors=remount-ro       0       1
# SWAP (here: /dev/zram0)
# Zram-based swap (compressed RAM block devices), for details see
zramswap.service and zramswap.conf

# dmesg | egrep 'zram|zswap'
[    1.041958] zswap: loaded using pool zstd/zbud
[   29.569355] zram: Added device: zram0
[   29.581631] zram0: detected capacity change from 0 to 1647824896
[   30.562279] Adding 1609200k swap on /dev/zram0.  Priority:100
extents:1 across:1609200k SSFS

# cat /sys/devices/virtual/block/zram0/comp_algorithm
lzo lzo-rle lz4 lz4hc [zstd]

# swapon --show
NAME       TYPE      SIZE USED PRIO
/dev/zram0 partition 1,5G   0B  100

# cat /proc/swaps
Filename                                Type            Size    Used    Priority
/dev/zram0                              partition       1609200 0       100

If you have any ideas let me know.

Ah, I see there is async-buffered.6.

- Sedat -

[1] https://aur.archlinux.org/packages/zramswap/
[2] https://aur.archlinux.org/cgit/aur.git/tree/zramswap.conf?h=zramswap
[3] https://aur.archlinux.org/cgit/aur.git/tree/zramswap.service?h=zramswap

  reply	other threads:[~2020-05-30 13:36 UTC|newest]

Thread overview: 63+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-05-26 19:51 [PATCHSET v5 0/12] Add support for async buffered reads Jens Axboe
2020-05-26 19:51 ` [PATCH 01/12] block: read-ahead submission should imply no-wait as well Jens Axboe
2020-05-26 19:51 ` [PATCH 02/12] mm: allow read-ahead with IOCB_NOWAIT set Jens Axboe
2020-05-26 20:45   ` Johannes Weiner
2020-05-26 19:51 ` [PATCH 03/12] mm: abstract out wake_page_match() from wake_page_function() Jens Axboe
2020-05-26 21:02   ` Johannes Weiner
2020-06-01 14:16   ` Matthew Wilcox
2020-05-26 19:51 ` [PATCH 04/12] mm: add support for async page locking Jens Axboe
2020-05-26 21:59   ` Johannes Weiner
2020-05-26 22:01     ` Jens Axboe
2020-05-27 16:02       ` Johannes Weiner
2020-06-01 14:26   ` Matthew Wilcox
2020-06-01 17:15     ` Jens Axboe
2020-05-26 19:51 ` [PATCH 05/12] mm: support async buffered reads in generic_file_buffered_read() Jens Axboe
2020-05-26 22:00   ` Johannes Weiner
2020-05-26 19:51 ` [PATCH 06/12] fs: add FMODE_BUF_RASYNC Jens Axboe
2020-05-26 19:51 ` [PATCH 07/12] ext4: flag as supporting buffered async reads Jens Axboe
2020-05-26 19:51 ` [PATCH 08/12] block: flag block devices as supporting IOCB_WAITQ Jens Axboe
2020-05-26 19:51 ` [PATCH 09/12] xfs: flag files as supporting buffered async reads Jens Axboe
2020-05-28 17:53   ` Darrick J. Wong
2020-05-28 19:23     ` Jens Axboe
2020-05-26 19:51 ` [PATCH 10/12] btrfs: " Jens Axboe
2020-05-26 19:57   ` Chris Mason
2020-05-26 19:51 ` [PATCH 11/12] mm: add kiocb_wait_page_queue_init() helper Jens Axboe
2020-05-26 22:01   ` Johannes Weiner
2020-05-26 19:51 ` [PATCH 12/12] io_uring: support true async buffered reads, if file provides it Jens Axboe
     [not found] ` <CA+icZUWfX+QmroE6j74C7o-BdfMF5=6PdYrA=5W_JCKddqkJgQ@mail.gmail.com>
2020-05-28 17:06   ` [PATCHSET v5 0/12] Add support for async buffered reads Jens Axboe
2020-05-28 17:12     ` Sedat Dilek
2020-05-28 17:14       ` Jens Axboe
2020-05-28 18:20         ` Sedat Dilek
2020-05-29 10:02     ` Sedat Dilek
2020-05-29 11:22       ` Sedat Dilek
2020-05-30 13:36         ` Sedat Dilek [this message]
2020-05-30 18:57           ` Sedat Dilek
2020-05-31  1:57             ` Jens Axboe
     [not found]               ` <CA+icZUXxmOA-5+dukCgxfSp4eVHB+QaAHO6tsgq0iioQs3Af-w@mail.gmail.com>
2020-05-31  7:12                 ` Sedat Dilek
2020-06-01 13:35                   ` Sedat Dilek
2020-06-01 14:04                     ` Jens Axboe
2020-06-01 14:13                       ` Sedat Dilek
2020-06-01 14:14                         ` Jens Axboe
2020-06-01 14:35                           ` Jens Axboe
2020-06-01 14:43                             ` Sedat Dilek
2020-06-01 14:46                               ` Jens Axboe
2020-06-01 14:51                                 ` Sedat Dilek
2020-06-01 20:18                                 ` Sedat Dilek
     [not found] ` <[email protected]>
2020-06-04  1:04   ` Jens Axboe
2020-06-04  1:30     ` Andres Freund
2020-06-05 19:56       ` Andres Freund
2020-06-05 14:42     ` Jens Axboe
2020-06-05 20:20       ` Andres Freund
2020-06-05 20:21         ` Jens Axboe
2020-06-05 20:36         ` Andres Freund
2020-06-05 20:53           ` Jens Axboe
2020-06-05 21:13             ` Jens Axboe
2020-06-05 21:21               ` Jens Axboe
2020-06-05 22:30                 ` Andres Freund
2020-06-05 22:36                   ` Andres Freund
2020-06-05 22:49                     ` Jens Axboe
2020-06-05 22:54                       ` Andres Freund
2020-06-05 22:56                         ` Jens Axboe
2020-06-05 23:02                           ` Andres Freund
2020-06-06  0:33                 ` Sedat Dilek
2020-06-06 16:04                   ` Jens Axboe

Reply instructions:

You may reply publicly to this message via plain-text email
using any one of the following methods:

* Save the following mbox file, import it into your mail client,
  and reply-to-all from there: mbox

  Avoid top-posting and favor interleaved quoting:
  https://en.wikipedia.org/wiki/Posting_style#Interleaved_style

* Reply using the --to, --cc, and --in-reply-to
  switches of git-send-email(1):

  git send-email \
    --in-reply-to=CA+icZUVJT8X3zyafrgbkJppsp4nJEKaLjYNs1kX8H+aY1Y10Qw@mail.gmail.com \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    [email protected] \
    /path/to/YOUR_REPLY

  https://kernel.org/pub/software/scm/git/docs/git-send-email.html

* If your mail client supports setting the In-Reply-To header
  via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox