Linux操作系统修改内核参数问题 By Liang Zhu 2015-11-26 更新日期:2015-11-26 文章目录 1. CentOS: ulimit1.1. ulimit -a1.2. 修改max user processes Linux操作系统有很多内核参数都会限制用户级程序运行,当遇到一些莫名其妙的CORE时,在确保程序无问题时,一定要去检查一下相关系统参数。 CentOS: ulimitulimit -a12345678910111213141516size (blocks, -c) 0data seg size (kbytes, -d) unlimitedscheduling priority (-e) 0file size (blocks, -f) unlimitedpending signals (-i) 514901max locked memory (kbytes, -l) 64max memory size (kbytes, -m) unlimitedopen files (-n) 65536pipe size (512 bytes, -p) 8POSIX message queues (bytes, -q) 819200real-time priority (-r) 0stack size (kbytes, -s) 10240cpu time (seconds, -t) unlimitedmax user processes (-u) 102400virtual memory (kbytes, -v) unlimitedfile locks (-x) unlimited 修改max user processes1vim /etc/security/limits.d/90-nproc.conf