On Wed, Jul 24, 2013 at 03:55:23PM +0800, Godbach wrote: > On 2013/7/24 13:42, Willy Tarreau wrote: > > > > >I agree and can confirm your results here. Also, if I replace the > >calloc with a malloc, I still see mmap and we don't have the 300M > >RSS anymore : > > > >willy@pcw:~$ ps auxw|grep a.out > >willy 31956 0.0 0.0 2880 632 pts/4 S+ 07:36 0:00 strace > >./a.out > >willy 31957 0.0 0.0 308764 320 pts/4 S+ 07:36 0:00 ./a.out > > > >So... it's becoming increasingly likely that we have a bug in haproxy > >or at least that we're overlooking something. That said I don't see > >what the issue could be considering that we're initializing fdinfo and > >fdtab with a calloc() just at one place. There's not even a realloc(). > > > >Best regards, > >Willy > > > > > > Yes, it is a strange behavior of haproxy as calloc is not replaced yet. > There is also another test I have done in haproxy-1.5-dev7: > > #ps axuw|grep haproxy > root 6142 0.3 7.5 206196 115820 pts/4 S+ 15:48 0:00 > ./haproxy -f h.cfg -d > > The RSS is 113Mbytes with maxconn is 1,048,576. If I decrease the > maxconn to be half, RSS is 55Mbytes. > > It seems that dev7 is somehow different from lastest snapshot in the > same condition.
dev7 did not have the poisoning/memset code, so that can make a difference on other structures. Willy
