Here is the document of dm-ioband.
Based on 2.6.24
Signed-off-by: Ryo Tsuruta <[EMAIL PROTECTED]>
Signed-off-by: Hirokazu Takahashi <[EMAIL PROTECTED]>
diff -uprN linux-2.6.24.orig/Documentation/device-mapper/ioband.txt
linux-2.6.24/Documentation/device-mapper/ioband.txt
--- linux
x27;t accept ID 0.
- Code cleanups. Use prefix "dm_" for the global symbols.
- Add examples in the document.
Thanks,
Ryo Tsuruta
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Here is the patch of dm-ioband.
Based on 2.6.24
Signed-off-by: Ryo Tsuruta <[EMAIL PROTECTED]>
Signed-off-by: Hirokazu Takahashi <[EMAIL PROTECTED]>
diff -uprN linux-2.6.24.orig/drivers/md/Kconfig linux-2.6.24/drivers/md/Kconfig
--- linux-2.6.24.orig/drivers/md/Kconfig2008
.8% | 34.2% |
---------
Thanks,
Ryo Tsuruta
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eparately.
- Support WRITE_BARRIER.
- Optimization.
- More configuration tools. Or is the dmsetup command sufficient?
- Other policies to schedule BIOs. Or is the weight policy sufficient?
Thanks,
Ryo Tsuruta
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Here is the patch of dm-band.
Based on 2.6.23.14
Signed-off-by: Ryo Tsuruta <[EMAIL PROTECTED]>
Signed-off-by: Hirokazu Takahashi <[EMAIL PROTECTED]>
diff -uprN linux-2.6.23.14.orig/drivers/md/Kconfig
linux-2.6.23.14/drivers/md/Kconfig
--- linux-2.6.23.14.orig/drivers/md/Kconfig
Here is the document of dm-band.
Based on 2.6.23.14
Signed-off-by: Ryo Tsuruta <[EMAIL PROTECTED]>
Signed-off-by: Hirokazu Takahashi <[EMAIL PROTECTED]>
diff -uprN linux-2.6.23.14.orig/Documentation/device-mapper/band.txt
linux-2.6.23.14/Documentation/device-mapper/band.txt
--- lin
Hi Frans,
> I'm not qualified to comment on the code, but here are some suggestions on
> config option and comments.
Thank you for your suggstions.
I will correct those mistakes.
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sing time of one token(I/O) is determined by one I/O cycle
include seek latency, interrupt latency, etc...
Thanks,
Ryo Tsuruta <[EMAIL PROTECTED]>
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Hi,
> > Here is the document of dm-band.
>
> Could you please address in the document how the intended use
> cases/feature set etc. differs from CFQ2 io priorities?
Thank you for your suggestion, I'll do that step by step.
Thanks,
Ryo Tsuruta
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17.0% | 16.6% |
---
Conclusions and future works
Dm-band works well with random I/Os. I have a plan on running some tests
using various real applications such as databases or file servers.
If you have any other good idea to test dm-band, please let me know.
Tha
and I/O
> scheduling are two different things, it may be simpler that they are
> implemented in different layers.
I would like to know how dm-band works on various configurations on
various type of hardware. I'll try running dm-band on with other
configurations. Any reports or impr
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