user/dev discussion of public-inbox itself
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From: Eric Wong <e@80x24.org>
To: meta@public-inbox.org
Subject: [PATCH 15/37] solver: break up patch application steps
Date: Mon, 21 Jan 2019 20:52:31 +0000
Message-ID: <20190121205253.10455-16-e@80x24.org> (raw)
In-Reply-To: <20190121205253.10455-1-e@80x24.org>

We want more fine-grained scheduling for PSGI use, as
the patch application step can take hundreds of milliseconds
on my modest hardware
---
 lib/PublicInbox/SolverGit.pm | 22 ++++++++++++++++------
 1 file changed, 16 insertions(+), 6 deletions(-)

diff --git a/lib/PublicInbox/SolverGit.pm b/lib/PublicInbox/SolverGit.pm
index 29cfd21..71494e0 100644
--- a/lib/PublicInbox/SolverGit.pm
+++ b/lib/PublicInbox/SolverGit.pm
@@ -236,8 +236,8 @@ sub prepare_index ($$$$) {
 		"$mode_a $oid_full\t", git_quote($path_a), "\n";
 }
 
-sub do_apply ($$$$) {
-	my ($out, $wt_git, $wt_dir, $di) = @_;
+sub do_apply_begin ($$$) {
+	my ($out, $wt_dir, $di) = @_;
 
 	my $tmp = delete $di->{tmp} or die "BUG: no tmp ", di_url($di);
 	$tmp->flush or die "tmp->flush failed: $!";
@@ -248,11 +248,19 @@ sub do_apply ($$$$) {
 	my $rdr = { 0 => fileno($tmp), 1 => $err_fd, 2 => $err_fd };
 	my $cmd = [ qw(git -C), $wt_dir,
 	            qw(apply --cached --whitespace=warn --verbose) ];
-	reap(spawn($cmd, undef, $rdr), 'apply');
+	spawn($cmd, undef, $rdr);
+}
 
-	local $/ = "\0";
-	my $rd = popen_rd([qw(git -C), $wt_dir, qw(ls-files -s -z)]);
+sub do_apply_continue ($$) {
+	my ($wt_dir, $apply_pid) = @_;
+	reap($apply_pid, 'apply');
+	popen_rd([qw(git -C), $wt_dir, qw(ls-files -s -z)]);
+}
 
+sub do_apply_end ($$$$) {
+	my ($out, $wt_git, $rd, $di) = @_;
+
+	local $/ = "\0";
 	defined(my $line = <$rd>) or die "failed to read ls-files: $!";
 	chomp $line or die "no trailing \\0 in [$line] from ls-files";
 
@@ -314,7 +322,9 @@ sub apply_patches ($$$$$) {
 			or die "print \$out failed: $!";
 
 		# apply the patch!
-		$found->{$di->{oid_b}} = do_apply($out, $wt_git, $wt_dir, $di);
+		my $apply_pid = do_apply_begin($out, $wt_dir, $di);
+		my $rd = do_apply_continue($wt_dir, $apply_pid);
+		$found->{$di->{oid_b}} = do_apply_end($out, $wt_git, $rd, $di);
 	}
 }
 
-- 
EW


  parent reply index

Thread overview: 38+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2019-01-21 20:52 [PATCH 00/37] viewvcs: diff highlighting and more Eric Wong
2019-01-21 20:52 ` [PATCH 01/37] view: disable bold in topic display Eric Wong
2019-01-21 20:52 ` [PATCH 02/37] hval: force monospace for <form> elements, too Eric Wong
2019-01-21 20:52 ` [PATCH 03/37] t/perf-msgview: add test to check msg_html performance Eric Wong
2019-01-21 20:52 ` [PATCH 04/37] solver: initial Perl implementation Eric Wong
2019-01-21 20:52 ` [PATCH 05/37] git: support multiple URL endpoints Eric Wong
2019-01-21 20:52 ` [PATCH 06/37] git: add git_quote Eric Wong
2019-01-21 20:52 ` [PATCH 07/37] git: check saves error on disambiguation Eric Wong
2019-01-21 20:52 ` [PATCH 08/37] solver: various bugfixes and cleanups Eric Wong
2019-01-21 20:52 ` [PATCH 09/37] view: wire up diff and vcs viewers with solver Eric Wong
2019-01-21 20:52 ` [PATCH 10/37] git: disable abbreviations with cat-file hints Eric Wong
2019-01-21 20:52 ` [PATCH 11/37] solver: operate directly on git index Eric Wong
2019-01-21 20:52 ` [PATCH 12/37] view: enable naming hints for raw blob downloads Eric Wong
2019-01-21 20:52 ` [PATCH 13/37] git: support 'ambiguous' result from --batch-check Eric Wong
2019-01-21 20:52 ` [PATCH 14/37] solver: more verbose blob resolution Eric Wong
2019-01-21 20:52 ` Eric Wong [this message]
2019-01-21 20:52 ` [PATCH 16/37] solver: switch patch application to use a callback Eric Wong
2019-01-21 20:52 ` [PATCH 17/37] solver: simplify control flow for initial loop Eric Wong
2019-01-21 20:52 ` [PATCH 18/37] solver: break @todo loop into a callback Eric Wong
2019-01-21 20:52 ` [PATCH 19/37] solver: note the synchronous nature of index preparation Eric Wong
2019-01-21 20:52 ` [PATCH 20/37] solver: add a TODO note about making this fully evented Eric Wong
2019-01-21 20:52 ` [PATCH 21/37] view: enforce trailing slash for /$INBOX/$OID/s/ endpoints Eric Wong
2019-01-21 20:52 ` [PATCH 22/37] solver: restore diagnostics and deal with CRLF Eric Wong
2019-01-21 20:52 ` [PATCH 23/37] www: admin-configurable CSS via "publicinbox.css" Eric Wong
2019-01-21 20:52 ` [PATCH 24/37] $INBOX/_/text/color/ and sample user-side CSS Eric Wong
2019-01-21 20:52 ` [PATCH 25/37] viewdiff: support diff-highlighting w/o coderepo Eric Wong
2019-01-21 20:52 ` [PATCH 26/37] viewdiff: cleanup state transitions a bit Eric Wong
2019-01-21 20:52 ` [PATCH 27/37] viewdiff: quote attributes for Atom feed Eric Wong
2019-01-21 20:52 ` [PATCH 28/37] t/check-www-inbox: use xmlstarlet to validate Atom if available Eric Wong
2019-01-21 20:52 ` [PATCH 29/37] viewdiff: do not link to 0{7,40} blobs (again) Eric Wong
2019-01-21 20:52 ` [PATCH 30/37] viewvcs: disable white-space prewrap in blob view Eric Wong
2019-01-21 20:52 ` [PATCH 31/37] solver: force quoted-printable bodies to LF Eric Wong
2019-01-21 20:52 ` [PATCH 32/37] solver: remove extra "^index $OID..$OID" line Eric Wong
2019-01-21 20:52 ` [PATCH 33/37] config: each_inbox iteration preserves config order Eric Wong
2019-01-21 20:52 ` [PATCH 34/37] t/check-www-inbox: warn on missing Content-Type Eric Wong
2019-01-21 20:52 ` [PATCH 35/37] highlight: initial wrapper and PSGI service Eric Wong
2019-01-21 20:52 ` [PATCH 36/37] hval: split out escape sequences to a separate table Eric Wong
2019-01-21 20:52 ` [PATCH 37/37] t/check-www-inbox: trap SIGINT for File::Temp destruction Eric Wong

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