On Thu, May 21, 2015a at 9:31 PM, Duy Nguyen [mailto:pclouds@xxxxxxxxx], did scribble: > > In case an object is not found pack directory is re-read again, which > > might cause some increased load on nfs. > > has_sha1_file() not finding the object should not happen often.. > > That last statement is probably very wrong, but I have no time to test this > now. In index-pack, there is a has_sha1_file() for file collision test. That call > on a fresh clone would fail for _every_ object in the > (new) pack and the cost of reprepare pack files could be sky high... Confirmed with bisect that it is that commit: ~/git $ git bisect bad 45e8a7487339c0f0ea28244ef06851308d07387c is the first bad commit commit 45e8a7487339c0f0ea28244ef06851308d07387c Author: Jeff King <peff@xxxxxxxx> Date: Fri Aug 30 15:14:13 2013 -0400 I have an strace for that build but it is 153 megabytes so I probably shouldn't attach, but the call summary is below: % time seconds usecs/call calls errors syscall ------ ----------- ----------- --------- --------- ---------------- 93.71 39.670084 103 386835 2171 futex 3.16 1.338572 7 190550 181 open 1.56 0.658786 18 37450 3 read 0.62 0.262740 2 141390 pread 0.41 0.171526 5 37313 9 write 0.18 0.076166 0 188859 188835 access 0.11 0.047941 0 374712 getdents 0.11 0.045174 11 4067 3910 lstat 0.06 0.023630 0 190425 close 0.04 0.017995 6 2975 1 fstat 0.02 0.007668 1917 4 wait4 0.01 0.004150 1 5065 madvise 0.01 0.003548 0 16090 8 recvfrom 0.00 0.001872 0 8048 select 0.00 0.001870 11 173 1 mkdir 0.00 0.000872 0 8055 poll 0.00 0.000262 22 12 12 readlink 0.00 0.000185 0 1217 1146 stat 0.00 0.000158 0 457 mprotect 0.00 0.000074 0 298 mmap 0.00 0.000069 1 109 8 rt_sigreturn 0.00 0.000047 0 159 brk 0.00 0.000021 1 17 getcwd 0.00 0.000000 0 42 3 lseek 0.00 0.000000 0 92 munmap 0.00 0.000000 0 35 rt_sigaction 0.00 0.000000 0 9 rt_sigprocmask 0.00 0.000000 0 8 3 ioctl 0.00 0.000000 0 11 pipe 0.00 0.000000 0 3 dup 0.00 0.000000 0 8 dup2 0.00 0.000000 0 6 setitimer 0.00 0.000000 0 11 1 socket 0.00 0.000000 0 8 7 connect 0.00 0.000000 0 8 sendto 0.00 0.000000 0 2 recvmsg 0.00 0.000000 0 1 bind 0.00 0.000000 0 1 getsockname 0.00 0.000000 0 3 1 getpeername 0.00 0.000000 0 2 setsockopt 0.00 0.000000 0 2 getsockopt 0.00 0.000000 0 8 clone 0.00 0.000000 0 5 execve 0.00 0.000000 0 3 uname 0.00 0.000000 0 100 fcntl 0.00 0.000000 0 2 fsync 0.00 0.000000 0 13 chdir 0.00 0.000000 0 14 rename 0.00 0.000000 0 2 link 0.00 0.000000 0 5 unlink 0.00 0.000000 0 2 symlink 0.00 0.000000 0 9 chmod 0.00 0.000000 0 6 getrlimit 0.00 0.000000 0 2 sysinfo 0.00 0.000000 0 8 getuid 0.00 0.000000 0 1 statfs 0.00 0.000000 0 5 arch_prctl 0.00 0.000000 0 1 gettid 0.00 0.000000 0 5 set_tid_address 0.00 0.000000 0 13 set_robust_list ------ ----------- ----------- --------- --------- ---------------- 100.00 42.333410 1594736 196300 total Is there anything else I can provide or test? Thanks for the help, Steve ��.n��������+%������w��{.n��������n�r������&��z�ޗ�zf���h���~����������_��+v���)ߣ�