1. 15 May, 2013 9 commits
  2. 14 May, 2013 4 commits
  3. 13 May, 2013 4 commits
  4. 02 May, 2013 2 commits
  5. 24 Apr, 2013 1 commit
  6. 09 Apr, 2013 1 commit
  7. 04 Apr, 2013 2 commits
  8. 14 Mar, 2013 1 commit
    • NanXiao's avatar
      Update config.c · 79a13b46
      NanXiao authored
      Fix bug in configGetCommand function: get correct masterauth value.
      79a13b46
  9. 06 Mar, 2013 3 commits
  10. 05 Mar, 2013 1 commit
  11. 25 Feb, 2013 1 commit
  12. 14 Feb, 2013 2 commits
  13. 12 Feb, 2013 2 commits
  14. 08 Feb, 2013 1 commit
  15. 05 Feb, 2013 2 commits
    • antirez's avatar
      b70b459b
    • charsyam's avatar
      Turn off TCP_NODELAY on the slave socket after SYNC. · c85647f3
      charsyam authored
      Further details from @antirez:
      
      It was reported by @StopForumSpam on Twitter that the Redis replication
      link was strangely using multiple TCP packets for multiple commands.
      This wastes a lot of bandwidth and is due to the TCP_NODELAY option we
      enable on the socket after accepting a new connection.
      
      However the master -> slave channel is a one-way channel since Redis
      replication is asynchronous, so there is no point in trying to reduce
      the latency, we should aim to reduce the bandwidth. For this reason this
      commit introduces the ability to disable the nagle algorithm on the
      socket after a successful SYNC.
      
      This feature is off by default because the delay can be up to 40
      milliseconds with normally configured Linux kernels.
      c85647f3
  16. 28 Jan, 2013 2 commits
  17. 19 Jan, 2013 1 commit
  18. 14 Dec, 2012 1 commit
    • antirez's avatar
      serverCron() frequency is now a runtime parameter (was REDIS_HZ). · f1481d4a
      antirez authored
      REDIS_HZ is the frequency our serverCron() function is called with.
      A more frequent call to this function results into less latency when the
      server is trying to handle very expansive background operations like
      mass expires of a lot of keys at the same time.
      
      Redis 2.4 used to have an HZ of 10. This was good enough with almost
      every setup, but the incremental key expiration algorithm was working a
      bit better under *extreme* pressure when HZ was set to 100 for Redis
      2.6.
      
      However for most users a latency spike of 30 milliseconds when million
      of keys are expiring at the same time is acceptable, on the other hand a
      default HZ of 100 in Redis 2.6 was causing idle instances to use some
      CPU time compared to Redis 2.4. The CPU usage was in the order of 0.3%
      for an idle instance, however this is a shame as more energy is consumed
      by the server, if not important resources.
      
      This commit introduces HZ as a runtime parameter, that can be queried by
      INFO or CONFIG GET, and can be modified with CONFIG SET. At the same
      time the default frequency is set back to 10.
      
      In this way we default to a sane value of 10, but allows users to
      easily switch to values up to 500 for near real-time applications if
      needed and if they are willing to pay this small CPU usage penalty.
      f1481d4a