From ae6a9be7afc6902f9b8970b3656af241d6bc1d9f Mon Sep 17 00:00:00 2001 From: Eric Wong Date: Wed, 29 Jul 2020 21:25:43 +0000 Subject: [PATCH] msgmap: disable CoW for tmp_clone, too The temporary clone starts as large as the full msgmap and deletes will write to it randomly. So ensure it doesn't get fragmented and slower as time goes on. --- lib/PublicInbox/Msgmap.pm | 2 ++ 1 file changed, 2 insertions(+) diff --git a/lib/PublicInbox/Msgmap.pm b/lib/PublicInbox/Msgmap.pm index 51b6a68c..c85e7796 100644 --- a/lib/PublicInbox/Msgmap.pm +++ b/lib/PublicInbox/Msgmap.pm @@ -14,6 +14,7 @@ use DBI; use DBD::SQLite; use File::Temp qw(tempfile); use PublicInbox::Over; +use PublicInbox::Spawn; sub new { my ($class, $git_dir, $writable) = @_; @@ -50,6 +51,7 @@ sub new_file { sub tmp_clone { my ($self, $dir) = @_; my ($fh, $fn) = tempfile('msgmap-XXXXXXXX', EXLOCK => 0, DIR => $dir); + PublicInbox::Spawn::set_nodatacow(fileno($fh)); my $tmp; if ($self->{dbh}->can('sqlite_backup_to_dbh')) { $tmp = ref($self)->new_file($fn, 2); -- 2.44.0