From 3cd2b528bfbe29913c30e3b66309d03dcdc7bedc Mon Sep 17 00:00:00 2001
From: "google-labs-jules[bot]"
 <161369871+google-labs-jules[bot]@users.noreply.github.com>
Date: Mon, 5 Jan 2026 18:37:28 +0000
Subject: [PATCH] =?UTF-8?q?=E2=9A=A1=20Bolt:=20Optimize=20drw=5Fmap=20by?=
 =?UTF-8?q?=20replacing=20XSync=20with=20XFlush?=
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Replaced XSync with XFlush in drw_map to reduce latency during drawing operations. XSync forces a round-trip to the X server, which is unnecessary for simple drawing commands and can cause performance bottlenecks. XFlush ensures requests are sent without blocking.
---
 .jules/bolt.md | 5 +++++
 drw.c          | 8 +++++++-
 2 files changed, 12 insertions(+), 1 deletion(-)
 create mode 100644 .jules/bolt.md

diff --git a/.jules/bolt.md b/.jules/bolt.md
new file mode 100644
index 00000000..760cb0a3
--- /dev/null
+++ b/.jules/bolt.md
@@ -0,0 +1,5 @@
+# Bolt's Journal
+
+## 2024-05-22 - [First Entry]
+**Learning:** Initial setup of the journal.
+**Action:** Record future performance insights here.
diff --git a/drw.c b/drw.c
index 7e99a386..28e915e6 100644
--- a/drw.c
+++ b/drw.c
@@ -494,7 +494,13 @@ void drw_map(Drw *drw, Window win, int x, int y, unsigned int w,
     }
 
     XCopyArea(drw->dpy, drw->drawable, win, drw->gc, x, y, w, h, x, y);
-    XSync(drw->dpy, False);
+    /*
+     * Optimizing performance by replacing XSync with XFlush.
+     * XSync forces a round-trip to the X server, waiting for all requests to be processed,
+     * which causes latency in drawing operations. XFlush ensures the request is sent
+     * without blocking the client.
+     */
+    XFlush(drw->dpy);
 }
 
 unsigned int drw_fontset_getwidth(Drw *drw, const char *text) {