diff options
Diffstat (limited to 'lib/PublicInbox/IPC.pm')
| -rw-r--r-- | lib/PublicInbox/IPC.pm | 11 |
1 files changed, 4 insertions, 7 deletions
diff --git a/lib/PublicInbox/IPC.pm b/lib/PublicInbox/IPC.pm index 39021f42..fa084795 100644 --- a/lib/PublicInbox/IPC.pm +++ b/lib/PublicInbox/IPC.pm @@ -464,16 +464,13 @@ sub detect_nproc () { my $n = $NPROCESSORS_ONLN{$^O}; return POSIX::sysconf($n) if defined $n; - # getconf(1) is POSIX, but *NPROCESSORS* vars are not + # getconf(1) is POSIX, but *NPROCESSORS* vars are not even if + # glibc, {Free,Net,Open}BSD all support them. for (qw(_NPROCESSORS_ONLN NPROCESSORS_ONLN)) { `getconf $_ 2>/dev/null` =~ /^(\d+)$/ and return $1; } - for my $nproc (qw(nproc gnproc)) { # GNU coreutils nproc - `$nproc 2>/dev/null` =~ /^(\d+)$/ and return $1; - } - - # should we bother with `sysctl hw.ncpu`? Those only give - # us total processor count, not online processor count. + # note: GNU nproc(1) checks CPU affinity, which is nice but + # isn't remotely portable undef } |