From 1b14dc8414c89990882e2faad3dc317682d94619 Mon Sep 17 00:00:00 2001 From: Hang Zhao Date: Wed, 2 Mar 2022 22:01:30 +0800 Subject: [PATCH] confcheck: add overcommit check Signed-off-by: Hang Zhao --- .../detect/sysconf/confcheck/confcheck.py | 26 +++++++++++++++++++ 1 file changed, 26 insertions(+) diff --git a/source/tools/detect/sysconf/confcheck/confcheck.py b/source/tools/detect/sysconf/confcheck/confcheck.py index 1d24a120..8a26c124 100644 --- a/source/tools/detect/sysconf/confcheck/confcheck.py +++ b/source/tools/detect/sysconf/confcheck/confcheck.py @@ -118,12 +118,38 @@ def check_file_config(): print("soft nofile不能超过fs.nr_open" ) etc_security_limit_fd.close() +def overcommit_check(): + overcommit_memory_cmd = 'sysctl -n vm.overcommit_memory' + overcommit_memory = exectue_cmd(overcommit_memory_cmd).strip('\n') + overcommit_kbytes_cmd = 'sysctl -n vm.overcommit_kbytes' + overcommit_kbytes = exectue_cmd(overcommit_kbytes_cmd).strip('\n') + overcommit_ratio_cmd = 'sysctl -n vm.overcommit_ratio' + overcommit_ratio = exectue_cmd(overcommit_ratio_cmd).strip('\n') + + meminfo_fd= open(meminfo,"r") + for line in meminfo_fd.readlines(): + if "CommitLimit" in line: + CommitLimit = line + if "Committed_AS" in line: + Committed_AS = line + + if overcommit_memory == "0": + print("vm.overcommit_memory = %s" %(overcommit_memory)) + print("vm.overcommit_kbytes和vm.overcommit_ratio设置的值不会生效，只要当前系统还有可用内存，即可继续分配虚拟地址区间。") + elif overcommit_memory == "1": + print("vm.overcommit_memory = %s" %(overcommit_memory)) + print("vm.overcommit_kbytes和vm.overcommit_ratio设置的值不会生效，不会受CommitLimit限制，始终可分配虚拟地址。") + else: + print("vm.overcommit_kbytes = %s," %(overcommit_kbytes)) + print("vm.overcommit_ratio = %s," %(overcommit_ratio)) + print(CommitLimit + Committed_AS) def main(): get_kernelversion() check_file_config() check_etc_config() check_pagecache_config() + overcommit_check() if __name__ == '__main__': main() -- Gitee