public inbox for [email protected]
help / color / mirror / Atom feedFrom: Nathan Bossart <[email protected]>
Subject: [PATCH v1 1/2] use optimized linear search in TransactionIdIsInProgress
Date: Thu, 1 Sep 2022 11:23:15 -0700
---
src/backend/storage/ipc/procarray.c | 12 ++++--------
1 file changed, 4 insertions(+), 8 deletions(-)
diff --git a/src/backend/storage/ipc/procarray.c b/src/backend/storage/ipc/procarray.c
index 0555b02a8d..a8b7b65518 100644
--- a/src/backend/storage/ipc/procarray.c
+++ b/src/backend/storage/ipc/procarray.c
@@ -58,6 +58,7 @@
#include "commands/dbcommands.h"
#include "miscadmin.h"
#include "pgstat.h"
+#include "port/pg_lfind.h"
#include "storage/proc.h"
#include "storage/procarray.h"
#include "storage/spin.h"
@@ -1586,14 +1587,9 @@ TransactionIdIsInProgress(TransactionId xid)
*/
topxid = SubTransGetTopmostTransaction(xid);
Assert(TransactionIdIsValid(topxid));
- if (!TransactionIdEquals(topxid, xid))
- {
- for (int i = 0; i < nxids; i++)
- {
- if (TransactionIdEquals(xids[i], topxid))
- return true;
- }
- }
+ if (!TransactionIdEquals(topxid, xid) &&
+ pg_lfind32(topxid, xids, nxids))
+ return true;
cachedXidIsNotInProgress = xid;
return false;
--
2.25.1
--HlL+5n6rz5pIUxbD
Content-Type: text/x-diff; charset=us-ascii
Content-Disposition: attachment;
filename="v1-0002-use-optimized-linear-search-in-XidIsConcurrent.patch"
view thread (7+ messages)
reply
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Reply to all the recipients using the --to and --cc options:
reply via email
To: [email protected]
Cc: [email protected]
Subject: Re: [PATCH v1 1/2] use optimized linear search in TransactionIdIsInProgress
In-Reply-To: <no-message-id-1860175@localhost>
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
This inbox is served by agora; see mirroring instructions
for how to clone and mirror all data and code used for this inbox