Details
-
Improvement
-
Resolution: Unresolved
-
Minor
-
None
-
None
-
9223372036854775807
Description
Using large capacity OST targets, we frequently increase obdfilter.*.precreate_batch since this appears to improve mdtest benchmark results.
Currently the obdfilter.*.precreate_batch values scale somewhat for small capacity OST targets; from 8 (<=1GB OST) to 128 (larger OSTs). However max value of 128 has not changed in several years. mdest benchmarks suggest larger capacity OST targets (e.g. 512T) would benefit from a precreate_batch value of 256 or larger.
Andreas Dilger (adilger@whamcloud.com) uploaded a new patch: https://review.whamcloud.com/36637
Subject: LU-12924 ofd: scale ofd.precreate_batch with OST size
Project: fs/lustre-release
Branch: master
Current Patch Set: 1
Commit: 4ef8830155a4a9ce8b3067ca32b94b95f634bffa