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Differential D10445

Speed up NVME crashdumps
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Authored by scottl on Apr 20 2017, 11:12 PM.
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imp

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gallatin
Summary

Don't poll for completion on every i/o for NVME crashdumps, only poll when the queue is full or when a flush-cache is sent

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Event Timeline

scottl created this revision.Apr 20 2017, 11:12 PM
Herald added a subscriber: imp. · View Herald TranscriptApr 20 2017, 11:12 PM
Harbormaster completed remote builds in B8821: Diff 27593.Apr 20 2017, 11:47 PM
gallatin edited edge metadata.Jul 13 2017, 5:18 PM

I finally tried this, and sadly it does not seem to speed things up at all.

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PathSize
sys/
dev/
nvme/
3 lines
30 lines

Diff 27593

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sys/dev/nvme/nvme.c

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sys/dev/nvme/nvme_ns_cmd.c

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