imap: use git-cat-file asynchronously

This ought to improve overall performance with multiple clients.
Single client performance suffers a tiny bit due to extra
syscall overhead from epoll.

This also makes the existing async interface easier-to-use,
since calling cat_async_begin is no longer required.

1 files changed, 0 insertions, 1 deletions

diff --git a/xt/git_async_cmp.t b/xt/git_async_cmp.t
index 46d27b26..8f8d1cf4 100644
--- a/xt/git_async_cmp.t
+++ b/xt/git_async_cmp.t
@@ -25,7 +25,6 @@ my $async = timeit($nr, sub {
                 $dig->add($$bref);
         };
         my $cat = $git->popen(@cat);
-        $git->cat_async_begin;
 
         while (<$cat>) {
                 my ($oid, undef, undef) = split(/ /);