From: Cyril Hrubis <chrubis@suse.cz>
To: Li Wang <liwang@redhat.com>
Cc: LTP List <ltp@lists.linux.it>
Subject: Re: [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size
Date: Thu, 23 Sep 2021 15:10:53 +0200 [thread overview]
Message-ID: <YUx83R4D+P2969Nx@yuki> (raw)
In-Reply-To: <CAEemH2e5P-VbEw1xM=tvR=F9Bd+45==hW4rcP2xAbVTuy8rmDg@mail.gmail.com>
Hi!
> > I do not think that it's a good idea to pass ~100MB buffer to a single
> > write()
> > and expect it to succeed anyways.
> >
>
> I suddenly realized that it is 1MB buffer but not 100MB, so that block
> number
> is not the key point for OOM.
>
> 1 Block == 4k on x86_64,
> 256 * 4k == 1024kB == 1MB
Uff my bad. Indeed the problem is the tmpfs that have been added to the
list of filesystems to test recently.
--
Cyril Hrubis
chrubis@suse.cz
--
Mailing list info: https://lists.linux.it/listinfo/ltp
prev parent reply other threads:[~2021-09-23 13:10 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2021-08-17 10:46 [LTP] [RFC PATCH] fallocate05: increase the fallocate and defallocate size Li Wang
2021-09-07 2:40 ` Li Wang
2021-09-07 2:40 ` Li Wang
2021-09-07 8:00 ` Jan Stancek
2021-09-07 8:00 ` Jan Stancek
2021-09-08 1:21 ` Li Wang
2021-09-08 1:21 ` Li Wang
2021-09-21 20:33 ` Ralph Siemsen
2021-09-22 5:03 ` Li Wang
2021-09-22 8:21 ` Cyril Hrubis
2021-09-22 9:53 ` Li Wang
2021-09-22 9:56 ` Cyril Hrubis
2021-09-22 10:34 ` Li Wang
2021-09-22 14:32 ` Cyril Hrubis
2021-09-22 16:52 ` Ralph Siemsen
2021-09-23 3:00 ` Li Wang
2021-09-23 6:29 ` Li Wang
2021-09-23 13:09 ` Cyril Hrubis
2021-09-24 4:27 ` Li Wang
2021-09-23 14:33 ` Cyril Hrubis
2021-09-24 1:49 ` Ralph Siemsen
2021-09-24 4:18 ` Li Wang
2021-09-24 15:11 ` Ralph Siemsen
2021-09-24 18:26 ` Cyril Hrubis
2021-09-24 20:26 ` Ralph Siemsen
2021-09-25 2:16 ` Ralph Siemsen
2021-09-26 7:17 ` Li Wang
2021-09-26 7:40 ` Li Wang
2021-09-26 7:39 ` Li Wang
2021-09-27 1:37 ` Ralph Siemsen
2021-09-24 6:49 ` Li Wang
2021-09-24 9:33 ` Cyril Hrubis
2021-09-23 6:39 ` Li Wang
2021-09-23 13:10 ` Cyril Hrubis [this message]
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