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common/config_opts.h: Lower HDD throttle cost. #15485

merged 1 commit into from Jun 8, 2017


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markhpc commented Jun 5, 2017

The older throttle cost lowers tail latency during 4k random writes but at the expense of large IO throughput. This relaxes the throttle cost to be closer to what we want without impacting throughput.

Signed-off-by: Mark Nelson

common/config_opts.h: Lower HDD throttle cost.
Signed-off-by: Mark Nelson <>

@tchaikov tchaikov added the performance label Jun 5, 2017

@liewegas liewegas merged commit 5bfd0b4 into master Jun 8, 2017

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@liewegas liewegas deleted the wip-hdd-throttle-cost branch Jun 8, 2017

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