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Am 10.03.2013 00:53, schrieb cosmoslx lin:> |
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> 2013/3/10 Volker Armin Hemmann <volkerarmin@××××××××××.com |
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> <mailto:volkerarmin@××××××××××.com>> |
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> |
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> Am 09.03.2013 19:15, schrieb Florian Philipp: |
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> > Hi list! |
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> > |
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> > Whenever I do sequential IO for a long stretch of time (e.g. |
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> md5summing |
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> > 40 GB), I'm experiencing high load (ca. 6 on a 4 CPU system) and |
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> > temporary freezes of most applications. For example, switching between |
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> > tabs in konsole sometimes takes more than 2 seconds. |
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> > |
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[...] |
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> > |
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> congratulation. You hit 'the bug'. Been around for ages, but for magical |
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> reasons kernel dev are unable to see or unable to do something about it. |
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> If you are using a vanilla kernel, posting on lkml might be the right |
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> thing to do. |
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> |
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> I have try the BFQ patch outside of the kernel mainline, it works well. |
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> Maybe you would like to see: |
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> http://algo.ing.unimo.it/people/paolo/disk_sched/ |
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> |
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Thanks. I'll try pf-sources which should to include that patch set. |
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Regards, |
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Florian Philipp |
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