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DLPX-70512 Long zio delays likely caused by Linux IO scheduler write throttling logic #233

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Merged
merged 1 commit into from
Aug 14, 2020
Merged

DLPX-70512 Long zio delays likely caused by Linux IO scheduler write throttling logic #233

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6 changes: 6 additions & 0 deletions files/common/lib/udev/rules.d/60-dlpx-schedulers.rules
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Original file line number Diff line number Diff line change
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#
# Delphix: this setting disables the write throttle algorithm that is used in
# the Linux IO scheduler for all block devices as we've seen problems with it.
# We explicitly disable it for zvols as it doesn't seem to apply to them anyway.
#
ACTION=="add|change", SUBSYSTEM=="block", KERNEL!="zd*", ATTR{queue/wbt_lat_usec}="0"