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: Fri, 29 May 2020 13:22:36 +0200 [thread overview]
Message-ID: <CA+icZUUwz5TPpT_zS=P4MZBDzzrAcFvZMUce8mJu8M1C7KNO5A@mail.gmail.com> (raw)
In-Reply-To: <CA+icZUUgazqLRwnbQgFPhCa5vAsAvJhjCGMYs7KYBZgA04mSyw@mail.gmail.com>
On Fri, May 29, 2020 at 12:02 PM Sedat Dilek <[email protected]> wrote:
[ ... ]
> As I saw stallings with e2scrub_reap.service and swap partition
> (partly seen in the boot-process and noted the UUID 3f8e).
> I disabled e2scrub_reap.service and deactivated swap partition in /etc/fstab.
>
I switched over from using a swap-partition to a swap-file.
The boot-slowdown is "gone" in sense of 1m30s stalls or better in
sense of boot-time is shorter.
# cat systemd-analyze-time.txt
Startup finished in 6.903s (kernel) + 1min 13.501s (userspace) = 1min 20.404s
graphical.target reached after 1min 13.481s in userspace
# cat systemd-analyze-time_swapfile.txt
Startup finished in 6.721s (kernel) + 1min 9.470s (userspace) = 1min 16.192s
graphical.target reached after 1min 9.451s in userspace
# cat systemd-analyze-blame.txt | head -20
35.943s udisks2.service
32.559s accounts-daemon.service
27.925s smartmontools.service
26.561s NetworkManager.service
24.543s dev-sdc2.device
24.478s polkit.service
20.426s NetworkManager-wait-online.service
19.785s avahi-daemon.service
19.586s switcheroo-control.service
19.185s rtkit-daemon.service
18.661s wpa_supplicant.service
18.269s systemd-logind.service
17.627s rsyslog.service
16.312s gpm.service
14.842s e2scrub_reap.service
14.387s packagekit.service
12.017s ModemManager.service
10.584s alsa-restore.service
8.407s atd.service
6.025s exim4.service
# cat systemd-analyze-blame_swapfile.txt | head -20
29.571s udisks2.service
26.383s accounts-daemon.service
24.564s smartmontools.service
20.735s NetworkManager.service
19.254s NetworkManager-wait-online.service
18.675s polkit.service
15.523s dev-sdc2.device
14.152s avahi-daemon.service
14.006s switcheroo-control.service
13.800s rtkit-daemon.service
13.662s packagekit.service
13.353s wpa_supplicant.service
13.178s rsyslog.service
12.788s systemd-logind.service
12.313s e2scrub_reap.service
11.105s ModemManager.service
11.003s gpm.service
10.018s networking.service
6.608s apparmor.service
5.858s exim4.service
Thanks.
Time to experience with ZRAM :-).
- Sedat -
LINK: https://wiki.debian.org/Swap
LINK: https://help.ubuntu.com/community/SwapFaq
mount -t auto /dev/sdb1 /mnt/sandisk
fallocate -l 8g /mnt/sandisk/swapfile
8 x 1024 x 1024 = 8388608
dd if=/dev/zero bs=1024 count=8388608 of=/mnt/sandisk/swapfile
8388608+0 Datensätze ein
8388608+0 Datensätze aus
8589934592 bytes (8,6 GB, 8,0 GiB) copied, 176,511 s, 48,7 MB/s
# chmod 600 /mnt/sandisk/swapfile
# ll /mnt/sandisk/swapfile
-rw------- 1 root root 8,0G Mai 29 12:23 /mnt/sandisk/swapfile
# mkswap /mnt/sandisk/swapfile
Setting up swapspace version 1, size = 8 GiB (8589930496 bytes)
no label, UUID=d3b72e81-c0fc-49fa-9704-cbbaba3822fc
# swapon /mnt/sandisk/swapfile
# free -h
total used free shared buff/cache available
Mem: 7,7Gi 1,6Gi 4,8Gi 167Mi 1,3Gi 5,7Gi
Swap: 8,0Gi 0B 8,0Gi
- EOT -
next prev parent reply other threads:[~2020-05-29 11:22 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 [this message]
2020-05-30 13:36 ` Sedat Dilek
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
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