[Monotone-devel] nvm.error-handling seems to have caused a serious slowdown

[Zack Weinberg]

I just merged mainline into .stripped and I noticed a major slowdown
in the testsuite, which seems to be down to the error-handling
changes:  "make check-local -j4" goes like this:

before merge

real   5m8.249s
user  3m45.818s
sys    5m20.672s

after merge

real   6m17.184s
user  7m54.486s
sys    5m36.285s

That's pretty nasty.  I haven't looked into the cause at all, but I
wonder if the extra field in every vocab object is blowing us out of
the D-cache...

zw