From: Marc Lehmann <schmorp@schmorp.de>
To: linux-f2fs-devel@lists.sourceforge.net
Subject: Re: SMR drive test 2; 128GB partition; no obvious corruption, much more sane behaviour, weird overprovisioning
Date: Sat, 26 Sep 2015 05:42:17 +0200 [thread overview]
Message-ID: <20150926034217.GA4645@schmorp.de> (raw)
In-Reply-To: <01bc01d0f769$15c05f60$41411e20$@samsung.com>
On Fri, Sep 25, 2015 at 04:05:48PM +0800, Chao Yu <chao2.yu@samsung.com> wrote:
> Actually, we should set the value of 'count' parameter to indicate how many
> times we want to do gc in one batch, at most 16 times in a loop for each
> ioctl invoking:
> ioctl(fd, F2FS_IOC_GC, &count);
> After ioctl retruned successfully, 'count' parameter will contain the count
> of gces we did actually.
Ah, so this way, I could even find out when to stop.
> One batch means a certain number of gces excuting serially.
Thanks for the explanation - well, I guess there is no harm in setting
count to 1 and calling it repeatedly, as GC operations should generally be
slow enough so many repeated calls will be ok.
--
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next prev parent reply other threads:[~2015-09-26 3:42 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-08-08 20:50 general stability of f2fs? Marc Lehmann
2015-08-10 20:31 ` Jaegeuk Kim
2015-08-10 20:53 ` Marc Lehmann
2015-08-10 21:58 ` Jaegeuk Kim
2015-08-13 0:26 ` Marc Lehmann
2015-08-14 23:07 ` Jaegeuk Kim
2015-09-20 23:59 ` finally testing with SMR drives Marc Lehmann
2015-09-21 8:17 ` SMR drive test 1; 512GB partition; very slow + unfixable corruption Marc Lehmann
2015-09-21 8:19 ` Marc Lehmann
2015-09-21 9:58 ` SMR drive test 2; 128GB partition; no obvious corruption, much more sane behaviour, weird overprovisioning Marc Lehmann
2015-09-22 20:22 ` SMR drive test 3: full 8TB partition, mount problems, fsck error after delete Marc Lehmann
2015-09-22 23:08 ` Jaegeuk Kim
2015-09-23 3:50 ` Marc Lehmann
2015-09-23 1:12 ` SMR drive test 2; 128GB partition; no obvious corruption, much more sane behaviour, weird overprovisioning Jaegeuk Kim
2015-09-23 4:15 ` Marc Lehmann
2015-09-23 6:00 ` Marc Lehmann
2015-09-23 8:55 ` Chao Yu
2015-09-23 23:30 ` Marc Lehmann
2015-09-23 23:43 ` Marc Lehmann
2015-09-24 17:21 ` Jaegeuk Kim
2015-09-25 8:28 ` Chao Yu
2015-09-25 8:05 ` Chao Yu
2015-09-26 3:42 ` Marc Lehmann [this message]
2015-09-23 22:08 ` Jaegeuk Kim
2015-09-23 23:39 ` Marc Lehmann
2015-09-24 17:27 ` Jaegeuk Kim
2015-09-25 5:42 ` Marc Lehmann
2015-09-25 17:45 ` Jaegeuk Kim
2015-09-26 3:32 ` Marc Lehmann
2015-09-26 7:36 ` Jaegeuk Kim
2015-09-26 13:53 ` Marc Lehmann
2015-09-28 18:33 ` Jaegeuk Kim
2015-09-29 7:36 ` Marc Lehmann
2015-09-23 6:06 ` Marc Lehmann
2015-09-23 9:10 ` Chao Yu
2015-09-23 21:30 ` Jaegeuk Kim
2015-09-23 23:11 ` Marc Lehmann
2015-09-23 21:29 ` Jaegeuk Kim
2015-09-23 23:24 ` Marc Lehmann
2015-09-24 17:51 ` Jaegeuk Kim
-- strict thread matches above, loose matches on Subject: below --
2015-09-23 21:58 sync/umount hang on 3.18.21, 1.4TB gone after crash Marc Lehmann
2015-09-23 23:11 ` write performance difference 3.18.21/4.2.1 Marc Lehmann
2015-09-24 18:28 ` Jaegeuk Kim
2015-09-24 23:20 ` Marc Lehmann
2015-09-24 23:27 ` Marc Lehmann
2015-09-25 6:50 ` Marc Lehmann
2015-09-25 9:47 ` Chao Yu
2015-09-25 18:20 ` Jaegeuk Kim
2015-09-26 3:22 ` Marc Lehmann
2015-09-26 5:25 ` write performance difference 3.18.21/git f2fs Marc Lehmann
2015-09-26 5:57 ` Marc Lehmann
2015-09-26 7:52 ` Jaegeuk Kim
2015-09-26 13:59 ` Marc Lehmann
2015-09-28 17:59 ` Jaegeuk Kim
2015-09-29 11:02 ` Marc Lehmann
2015-09-29 23:13 ` Jaegeuk Kim
2015-09-30 9:02 ` Chao Yu
2015-10-01 12:11 ` Marc Lehmann
2015-10-01 18:51 ` Marc Lehmann
2015-10-02 8:53 ` 100% system time hang with git f2fs Marc Lehmann
2015-10-02 16:51 ` Jaegeuk Kim
2015-10-03 6:29 ` Marc Lehmann
2015-10-02 16:46 ` write performance difference 3.18.21/git f2fs Jaegeuk Kim
2015-10-04 9:40 ` near disk full performance (full 8TB) Marc Lehmann
2015-09-26 7:48 ` write performance difference 3.18.21/4.2.1 Jaegeuk Kim
2015-09-25 18:26 ` Jaegeuk Kim
2015-09-24 18:50 ` sync/umount hang on 3.18.21, 1.4TB gone after crash Jaegeuk Kim
2015-09-25 6:00 ` Marc Lehmann
2015-09-25 6:01 ` Marc Lehmann
2015-09-25 18:42 ` Jaegeuk Kim
2015-09-26 3:08 ` Marc Lehmann
2015-09-26 7:27 ` Jaegeuk Kim
2015-09-25 9:13 ` Chao Yu
2015-09-25 18:30 ` Jaegeuk Kim
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