dirstate: use a presized dict for the dirstate
This uses a simple heuristic to avoid expensive resizes.
On a real-world repo with around 400,000 files, perfdirstate:
before: ! wall 0.155562 comb 0.160000 user 0.150000 sys 0.010000 (best of 64)
after: ! wall 0.132638 comb 0.130000 user 0.120000 sys 0.010000 (best of 75)
On another real-world repo with around 250,000 files:
before: ! wall 0.098459 comb 0.100000 user 0.090000 sys 0.010000 (best of 100)
after: ! wall 0.089084 comb 0.090000 user 0.080000 sys 0.010000 (best of 100)
#!/bin/rc
# 9mail - Mercurial email wrapper for upas/marshal
fn usage {
echo >[1=2] usage: mercurial/9mail -f from to [cc]
exit usage
}
from=()
cc=()
to=()
switch($1){
case -f
from=$2
case *
usage
}
to=($3)
if(~ $#* 4)
cc=(-C $4)
upasname=$from
upas/marshal $cc $to