1. 02 May, 2020 1 commit
    • zhenwei pi's avatar
      Support setcpuaffinity on linux/bsd · 1a0deab2
      zhenwei pi authored
      Currently, there are several types of threads/child processes of a
      redis server. Sometimes we need deeply optimise the performance of
      redis, so we would like to isolate threads/processes.
      
      There were some discussion about cpu affinity cases in the issue:
      https://github.com/antirez/redis/issues/2863
      
      
      
      So implement cpu affinity setting by redis.conf in this patch, then
      we can config server_cpulist/bio_cpulist/aof_rewrite_cpulist/
      bgsave_cpulist by cpu list.
      
      Examples of cpulist in redis.conf:
      server_cpulist 0-7:2      means cpu affinity 0,2,4,6
      bio_cpulist 1,3           means cpu affinity 1,3
      aof_rewrite_cpulist 8-11  means cpu affinity 8,9,10,11
      bgsave_cpulist 1,10-11    means cpu affinity 1,10,11
      
      Test on linux/freebsd, both work fine.
      Signed-off-by: default avatarzhenwei pi <pizhenwei@bytedance.com>
      1a0deab2
  2. 20 Apr, 2020 1 commit
  3. 18 Apr, 2020 1 commit
    • zhenwei pi's avatar
      Threaded IO: set thread name for redis-server · 5010da6a
      zhenwei pi authored
      
      
      Set thread name for each thread of redis-server, this helps us to
      monitor the utilization and optimise the performance.
      
      And suggested-by Salvatore, implement this feature for multi
      platforms. Currently support linux and bsd, ignore other OS.
      
      An exmaple on Linux:
       # top -d 5 -p `pidof redis-server ` -H
      
          PID USER      PR  NI    VIRT    RES    SHR S %CPU %MEM     TIME+ COMMAND
      3682671 root      20   0  227744   8248   3836 R 99.2  0.0   0:19.53 redis-server
      3682677 root      20   0  227744   8248   3836 S 26.4  0.0   0:04.15 io_thd_3
      3682675 root      20   0  227744   8248   3836 S 23.6  0.0   0:03.98 io_thd_1
      3682676 root      20   0  227744   8248   3836 S 23.6  0.0   0:03.97 io_thd_2
      3682672 root      20   0  227744   8248   3836 S  0.2  0.0   0:00.02 bio_close_file
      3682673 root      20   0  227744   8248   3836 S  0.2  0.0   0:00.02 bio_aof_fsync
      3682674 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 bio_lazy_free
      3682678 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      3682682 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      3682683 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      3682684 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      3682685 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      3682687 root      20   0  227744   8248   3836 S  0.0  0.0   0:00.00 jemalloc_bg_thd
      
      Another exmaple on FreeBSD-12.1:
        PID USERNAME    PRI NICE   SIZE    RES STATE    C   TIME    WCPU COMMAND
       5212 root        100    0    48M  7280K CPU2     2   0:26  99.52% redis-server{redis-server}
       5212 root         38    0    48M  7280K umtxn    4   0:06  26.94% redis-server{io_thd_3}
       5212 root         36    0    48M  7280K umtxn    6   0:06  26.84% redis-server{io_thd_1}
       5212 root         39    0    48M  7280K umtxn    1   0:06  25.30% redis-server{io_thd_2}
       5212 root         20    0    48M  7280K uwait    3   0:00   0.00% redis-server{redis-server}
       5212 root         21    0    48M  7280K uwait    2   0:00   0.00% redis-server{bio_close_file}
       5212 root         21    0    48M  7280K uwait    3   0:00   0.00% redis-server{bio_aof_fsync}
       5212 root         21    0    48M  7280K uwait    0   0:00   0.00% redis-server{bio_lazy_free}
      Signed-off-by: default avatarzhenwei pi <pizhenwei@bytedance.com>
      5010da6a
  4. 05 Oct, 2018 1 commit
  5. 05 Sep, 2018 1 commit
  6. 15 Mar, 2018 1 commit
  7. 01 Oct, 2015 4 commits
  8. 27 Jul, 2015 2 commits
  9. 26 Jul, 2015 2 commits
  10. 30 Mar, 2015 1 commit
  11. 19 Jan, 2013 1 commit
  12. 22 Nov, 2012 1 commit
    • antirez's avatar
      Make bio.c threads killable ASAP if needed. · 75369917
      antirez authored
      We use this new bio.c feature in order to stop our I/O threads if there
      is a memory test to do on crash. In this case we don't want anything
      else than the main thread to run, otherwise the other threads may mess
      with the heap and the memory test will report a false positive.
      75369917
  13. 08 Nov, 2012 1 commit
  14. 27 Mar, 2012 1 commit
  15. 19 Sep, 2011 1 commit
  16. 16 Sep, 2011 1 commit
  17. 15 Sep, 2011 7 commits
  18. 13 Sep, 2011 6 commits