On Fri, May 27, 2022 at 01:39:15AM +0800, 徐志宇徐 wrote: > Hi Justin > > Thanks for you explaination. > > > > What postgres version ? > > > How was it installed ? From souce? From a package ? > I am using Postgres 11.1 .It's installed by package. This is quite old, and missing ~4 years of bugfixes. What's the output of these commands? tail /proc/sys/vm/overcommit_* tail /proc/sys/vm/nr_*hugepages /proc/cmdline cat /proc/meminfo uname -a -- Justin
