Haobo Xu d897d33bf1 [RocksDB] Introduce Fast Mutex option ...

Summary:
This diff adds an option to specify whether PTHREAD_MUTEX_ADAPTIVE_NP will be enabled for the rocksdb single big kernel lock. db_bench also have this option now.
Quickly tested 8 thread cpu bound 100 byte random read.
No fast mutex: ~750k/s ops
With fast mutex: ~880k/s ops

Test Plan: make check; db_bench; db_stress

Reviewers: dhruba

CC: MarkCallaghan, leveldb

Differential Revision: https://reviews.facebook.net/D11031

2013-06-01 23:11:34 -07:00

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leveldb

[RocksDB] Introduce Fast Mutex option

2013-06-01 23:11:34 -07:00

utilities

Bring read_only into ttl

2013-05-10 16:13:26 -07:00