rocksdb/env
Siying Dong da1c64b6e7 Introduce a CPU time counter in perf_context (#4741)
Summary:
Introduce the first CPU timing counter, perf_context.get_cpu_nanos. This opens a door to more CPU counters in the future.
Only Posix Env has it implemented using clock_gettime() with CLOCK_THREAD_CPUTIME_ID. How accurate the counter is depends on the platform.
Make PerfStepTimer to take an Env as an argument, and sometimes pass it in. The direct reason is to make the unit tests to use SpecialEnv where we can ingest logic there. But in long term, this is a good change.
Pull Request resolved: https://github.com/facebook/rocksdb/pull/4741

Differential Revision: D13287798

Pulled By: siying

fbshipit-source-id: 090361049d9d5095d1d1a369fe1338d2e2e1c73f
2018-12-20 12:03:44 -08:00
..
env.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_basic_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_chroot.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_chroot.h Change RocksDB License 2017-07-15 16:11:23 -07:00
env_encryption.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_hdfs.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
env_posix.cc Introduce a CPU time counter in perf_context (#4741) 2018-12-20 12:03:44 -08:00
env_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
io_posix.cc Assert for Direct IO at the beginning in PositionedRead (#3891) 2018-06-21 14:58:01 -07:00
io_posix.h Second attempt at db_stress crash-recovery verification 2018-04-30 12:27:34 -07:00
mock_env.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
mock_env.h Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
mock_env_test.cc Update all unique/shared_ptr instances to be qualified with namespace std (#4638) 2018-11-09 11:19:58 -08:00
posix_logger.h Auto recovery from out of space errors (#4164) 2018-09-15 13:43:04 -07:00