From: Hans Reiser <reiser@namesys.com>
To: Manuel Krause <manuel.krause@mb.tu-ilmenau.de>
Cc: Chris Mason <mason@suse.com>, reiserfs-list <reiserfs-list@namesys.com>
Subject: Re: data-logging time comparison
Date: Fri, 02 Aug 2002 22:34:06 +0400 [thread overview]
Message-ID: <3D4AD09E.8070409@namesys.com> (raw)
In-Reply-To: 3D4AD035.7080902@mb.tu-ilmenau.de
These results suggest that data=ordered should indeed be the default.
Good job Chris!
Hans
Manuel Krause wrote:
> On 08/02/2002 01:24 AM, Manuel Krause wrote:
>
>> Hi!
>>
>> Maybe you are interested in my recent backup time comparison. I
>> simply copied the partitions with "cp -ax /.../a/. /.../b/" where
>> "/.../b/" is a freshly created reiserfs. I hope the comparison is
>> readable and makes sense for someone.
>>
>
> O.k.
>
> I made a new comparison with just the data-logging patch replaced by
> the new -24, and now, only using fresh filesystems. I added the
> related lines from tonight to show the improvement.
>
> File size distribution statistics are available via email upon request
> (131kB as .tar.gz).
>
> Best wishes,
>
> Manuel
>
>
> partition 1: /dev/hdd7 2722896 1925876 797020 71% /mnt/alpha
> (is my / filesystem)
>
> new FS noatime,notail,data=writeback
> real 3m11.881s user 0m1.600s sys 0m49.040s ~9,802MB/s =100%
> new FS noatime,notail,data=ordered
> real 3m19.895s user 0m1.400s sys 0m49.890s ~9,409MB/s 96%
> new FS noatime,notail,data=journal
> real 6m48.534s user 0m1.570s sys 1m0.830s ~4,604MB/s 47%
> new FS noatime,notail "data-logging-23"
> (real 3m18.826s user 0m1.310s sys 0m49.710s) ~9,478MB/s 97%
> new FS noatime,notail,data=ordered "data-logging-23"
> (real 4m6.866s user 0m1.620s sys 0m50.120s) ~7,633MB/s 78%
>
>
>
> partition 2: /dev/hdd11 5550248 4490128 1060120 81% /mnt/alpha
> (is my software "repository")
>
> new FS noatime,notail,data=writeback
> real 8m46.739s user 0m1.430s sys 1m32.110s ~8,325MB/s =100%
> new FS noatime,notail,data=ordered
> real 8m56.040s user 0m1.410s sys 1m27.920s ~8,180MB/s 98%
> new FS noatime,notail,data=journal
> real 18m36.456s user 0m1.750s sys 1m58.480s ~3,928MB/s 47%
> new FS noatime,notail partition 86% full, "data-logging-23"
> (real 9m20.956s user 0m1.680s sys 1m39.190s) ~8,248MB/s 99%
> new FS noatime,notail,data=ordered part. 86% full, "data-logging-23"
> (real 11m54.513s user 0m1.910s sys 1m38.460s) ~6,476MB/s 78%
>
>
>
--
Hans
prev parent reply other threads:[~2002-08-02 18:34 UTC|newest]
Thread overview: 3+ messages / expand[flat|nested] mbox.gz Atom feed top
2002-08-01 23:24 data-logging time comparison Manuel Krause
2002-08-02 18:32 ` Manuel Krause
2002-08-02 18:34 ` Hans Reiser [this message]
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