-
由 Igor Canadi 提交于
Summary: This is part of an effort to better understand and optimize RocksDB stalls under high load. I added a feature to db_bench to periodically write QPS to CSV files. That way we can nicely see how our QPS changes in time (especially when DB is stalled) and can do a better job of evaluating our stall system (i.e. we want the QPS to be as constant as possible, as opposed to having bunch of stalls) Cool part of CSV files is that we can easily graph them -- there are a bunch of tools available. Test Plan: Ran ./db_bench --report_interval_seconds=10 --benchmarks=fillrandom --num=10000000 and observed this in report.csv: secs_elapsed,interval_qps 10,2725860 20,1980480 30,1863456 40,1454359 50,1460389 Reviewers: sdong, MarkCallaghan, rven, yhchiang Reviewed By: yhchiang Subscribers: dhruba, leveldb Differential Revision: https://reviews.facebook.net/D40047
d59d90bb
可在Tags中查看这些版本中当前仓库的状态.