From: Vladislav Bolkhovitin <vst-d+Crzxg7Rs0@public.gmane.org>
To: FUJITA Tomonori
<fujita.tomonori-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
Cc: James.Bottomley-JuX6DAaQMKPCXq6kfMZ53/egYHeGw8Jk@public.gmane.org,
stgt-devel-0fE9KPoRgkgATYTw5x5z8w@public.gmane.org,
linux-scsi-u79uwXL29TY76Z2rM5mHXA@public.gmane.org,
scst-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org
Subject: Re: Performance of SCST versus STGT
Date: Tue, 22 Jan 2008 14:33:13 +0300 [thread overview]
Message-ID: <4795D479.1080805@vlnb.net> (raw)
In-Reply-To: <20080122122657R.fujita.tomonori-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
FUJITA Tomonori wrote:
> The big problem of stgt iSER is disk I/Os (move data between disk and
> page cache). We need a proper asynchronous I/O mechanism, however,
> Linux doesn't provide such and we use a workaround, which incurs large
> latency. I guess, we cannot solve this until syslets is merged into
> mainline.
Hmm, SCST also doesn't have ability to use asynchronous I/O, but that
doesn't prevent it from showing good performance.
Vlad
next prev parent reply other threads:[~2008-01-22 11:33 UTC|newest]
Thread overview: 37+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-01-17 9:27 Performance of SCST versus STGT Bart Van Assche
2008-01-17 9:40 ` FUJITA Tomonori
2008-01-17 9:48 ` Vladislav Bolkhovitin
2008-01-17 10:05 ` FUJITA Tomonori
[not found] ` <20080117190558K.fujita.tomonori-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
2008-01-17 10:34 ` Vladislav Bolkhovitin
[not found] ` <478F2F46.9040103-d+Crzxg7Rs0@public.gmane.org>
2008-01-17 12:29 ` Robin Humble
2008-01-17 13:44 ` [Scst-devel] [Stgt-devel] " Vladislav Bolkhovitin
[not found] ` <20080117122956.GA3567-Td5ZOp7sT3Xw02mFwxTg32+DJq1SqhBbsOSz5zK2v9k@public.gmane.org>
2008-01-17 14:43 ` Bart Van Assche
2008-01-17 17:45 ` Pete Wyckoff
[not found] ` <20080117174542.GC29650-pxmRpbKlMIQ@public.gmane.org>
2008-01-18 10:30 ` Bart Van Assche
2008-01-18 12:08 ` Vladislav Bolkhovitin
2008-01-20 9:36 ` Bart Van Assche
[not found] ` <e2e108260801200136g7f17b8a0g89a54cc1d73bbc34-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-01-21 12:07 ` Vladislav Bolkhovitin
2008-01-22 3:26 ` FUJITA Tomonori
[not found] ` <20080122122657R.fujita.tomonori-Zyj7fXuS5i5L9jVzuh4AOg@public.gmane.org>
2008-01-22 7:50 ` Bart Van Assche
2008-01-22 11:33 ` Vladislav Bolkhovitin [this message]
[not found] ` <4795D479.1080805-d+Crzxg7Rs0@public.gmane.org>
2008-01-22 11:48 ` FUJITA Tomonori
2008-01-22 12:20 ` Vladislav Bolkhovitin
2008-01-22 15:14 ` Bart Van Assche
2008-01-22 10:04 ` Bart Van Assche
2008-01-22 11:33 ` Vladislav Bolkhovitin
[not found] ` <4795D4A7.5000105-d+Crzxg7Rs0@public.gmane.org>
2008-01-22 12:32 ` Bart Van Assche
[not found] ` <e2e108260801220432l353b1d76xd2707b5e6f336aef-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-01-22 15:23 ` Vladislav Bolkhovitin
2008-01-24 7:06 ` Robin Humble
2008-01-24 10:36 ` [Stgt-devel] " Bart Van Assche
2008-01-24 11:10 ` Vladislav Bolkhovitin
[not found] ` <4798720E.4020802-d+Crzxg7Rs0@public.gmane.org>
2008-01-24 11:40 ` Robin Humble
[not found] ` <20080124114027.GC26751-Td5ZOp7sT3Xw02mFwxTg32+DJq1SqhBbsOSz5zK2v9k@public.gmane.org>
2008-01-24 12:41 ` Vladislav Bolkhovitin
[not found] ` <e2e108260801240236o2273be0bw24a2a61dcc781222-JsoAwUIsXosN+BqQ9rBEUg@public.gmane.org>
2008-01-24 11:32 ` Robin Humble
[not found] ` <20080124113215.GB26751-Td5ZOp7sT3Xw02mFwxTg32+DJq1SqhBbsOSz5zK2v9k@public.gmane.org>
2008-01-24 12:40 ` Vladislav Bolkhovitin
2008-01-24 16:16 ` [Stgt-devel] " Bart Van Assche
2008-01-24 19:54 ` Vladislav Bolkhovitin
2008-01-25 7:24 ` Bart Van Assche
2008-01-22 12:33 ` Bart Van Assche
2008-01-17 14:22 ` Erez Zilber
[not found] ` <478F64A0.6020201-hKgKHo2Ms0F+cjeuK/JdrQ@public.gmane.org>
2008-01-17 14:32 ` Vladislav Bolkhovitin
[not found] ` <478F6708.30604-d+Crzxg7Rs0@public.gmane.org>
2008-01-17 14:46 ` Erez Zilber
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