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Hi, Am 23.02.2012 11:19, schrieb Günter Merz:
I'm experiencing unresponsiveness and a general system slowdown when I'm unpacking big archives or building a big packages (during builds I'm only using max 2 cores). To counter this, I've been experimenting with nice and ionice. Unfortunately, ionice -c3 before big I/O traffic doesn't seem to make any difference. The responsiveness is still really bad at times.
This sounds like those (more or less) well-known hugepage issues.You could try "echo madvise > /sys/kernel/mm/transparent_hugepage/defrag" (or "echo never...") if your kernel is configured to use transparent hugepages (which most modern distribution kernels are).
If this is your issue, the bug isn't really caused by dm-crypt, but by Linux memory management issues and it is completely unrelated to ionice or io scheduler settings.
Regards, Marc _______________________________________________ dm-crypt mailing list dm-crypt@xxxxxxxx http://www.saout.de/mailman/listinfo/dm-crypt
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