Donald_Draper@Server:~> cat /proc/sys/kernel/pid_max 32768
#进程允许的最大内存
Donald_Draper@Server:~> cat /proc/sys/vm/max_map_count 2000000
#系统限制某用户下最多可以运行多少进程或线程
Donald_Draper@Server:~> ulimit -a core file size (blocks, -c) 0 data seg size (kbytes, -d) unlimited scheduling priority (-e) 0 file size (blocks, -f) unlimited pending signals (-i) 62907 max locked memory (kbytes, -l) 64 max memory size (kbytes, -m) unlimited open files (-n) 1024 pipe size (512 bytes, -p) 8 POSIX message queues (bytes, -q) 819200 real-time priority (-r) 0 stack size (kbytes, -s) 8192 cpu time (seconds, -t) unlimited max user processes (-u) 62907 virtual memory (kbytes, -v) unlimited file locks (-x) unlimited Donald_Draper@Server:~>
#查看进程允许的最大线程数
Donald_Draper@Server:~> pstree -p 11089 | wc -l 282 Donald_Draper@Server:~>