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 |
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win | ||
atomic_pointer.h | ||
port_example.h | ||
port_posix.cc | ||
port_posix.h | ||
port.h | ||
README | ||
stack_trace.cc |
This directory contains interfaces and implementations that isolate the rest of the package from platform details. Code in the rest of the package includes "port.h" from this directory. "port.h" in turn includes a platform specific "port_<platform>.h" file that provides the platform specific implementation. See port_posix.h for an example of what must be provided in a platform specific header file.