Threaded IO: set thread name for redis-server
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:
zhenwei pi <pizhenwei@bytedance.com>
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