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Increase the default parallelism level for pwork clients so that we can
take advantage of computers with a lot of CPUs and a lot of hardware.
8x raid0 spinning rust running quotacheck:
1 39s
2 29s
4 26s
8 24s
24 (nr_cpus) 24s
4x raid0 sata ssds running quotacheck:
1 12s
2 12s
4 12s
8 13s
24 (nr_cpus) 14s
4x raid0 nvme ssds running quotacheck:
1 18s
2 18s
4 19s
8 20s
20 (nr_cpus) 20s
So, mixed results...
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
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Create a pwork destroy function that uses polling instead of
uninterruptible sleep to wait for work items to finish so that we can
touch the softlockup watchdog. IOWs, gross hack.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
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Create a parallel iwalk implementation and switch quotacheck to use it.
Signed-off-by: Darrick J. Wong <darrick.wong@oracle.com>
Reviewed-by: Brian Foster <bfoster@redhat.com>
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