On Oct 11, 2005, at 7:42 PM, Daniel Berlin wrote:
So, Mike Stump said his update times with svn from toolchain.org
were a
little slow.
Let me know if it's still slow for you.
Ok, had a chance to upgrade my svn to 1.2.3, and time from gcc.gnu.org:
$ cd gcc
$ time svn update *.c
[ lots o output that is annoying ]
real 3m28.134s
user 0m7.665s
sys 0m5.403s
From top:
Networks: 16981 ipkts/2674K 10405 opkts /1370K
Disks: 106 reads/781K 345 writes/4755K
$ time cvs update *.c
real 0m1.329s
user 0m0.452s
sys 0m0.076s
From top:
Networks: 160 ipkts/43K 54 opkts /11K
Disks: 0 reads/0K 0 writes/0K
VM: 0 pageins 0 pageouts
svn is only 156x slower than cvs. :-( It used to be in the 500x
slower range (or so) with 1.1.3, so, great progress, but... 62x
worse on the network reads, 124x worse on network writes, infinitely
worse on the disk reads and writes.
Yes, I really do run updates this way on occasion, usually during the
last stages of a targeted reghunt, but, not often. I don't see this
as a transition issue, just, my fingers will fat finger it from time
to time and they are gonna have to learn to not do that anymore.
Now, just so people understand the normal update command, here is
what I see:
mrs $ time cvs update
real 0m16.373s
user 0m0.715s
sys 0m2.533s
From top:
Networks: 689 ipkts/133K 191 opkts /151K
Disks: 3189 reads/13252K 834 writes/4130K
mrs $ time svn update
real 0m4.833s
user 0m0.577s
sys 0m0.778s
From top:
Networks: 176 ipkts/20K 35 opkts /7K
Disks: 6 reads/48K 864 writes/12894K
All operations were hot nops.
