On Tue, Mar 5, 2019 at 5:01 AM Nicola Contu <nicola.contu@xxxxxxxxx> wrote: > Attached a part of the strace running the pgbench command for pg11 > Also attached strace_10 for pg10.6. That looks like strace output from pgbench, and I don't see any interesting differences between v10 and v11 (though I'm surprised to see it using poll() instead of ppoll(), and opening a new connection for every transaction). How about syscalls on the server side? You could start it with something like "strace -f path/to/postgres -D path/to/pgdata" (-f for follow children), and perhaps also use -c so that it shows aggregated data (up until you ^C it) instead of every syscall? -- Thomas Munro https://enterprisedb.com
