From: Wilco Dijkstra <wilco.dijkstra@arm.com>
Date: Tue, 8 Jul 2025 15:03:46 +0000 (+0000)
Subject: NEWS: Mention tcache improvements
X-Git-Tag: glibc-2.42~63
X-Git-Url: http://git.ipfire.org/?a=commitdiff_plain;h=f33bb123660a51e833b9ed07d8306852028ba7f6;p=thirdparty%2Fglibc.git

NEWS: Mention tcache improvements

Update NEWS with tcache improvements.

Reviewed-by: Adhemerval Zanella  <adhemerval.zanella@linaro.org>
---

diff --git a/NEWS b/NEWS
index cc668344c1..7c407c2ea3 100644
--- a/NEWS
+++ b/NEWS
@@ -26,6 +26,11 @@ Major new features:
   speed_t is redefined to simply be the baud rate specified as an
   unsigned int, which matches the kernel interface.
 
+* The thread-local cache in malloc (tcache) now supports caching of large
+  blocks.  This feature can be enabled by setting the tunable
+  glibc.malloc.tcache_max to a larger value (max 4194304).
+  Tcache is also significantly faster for small sizes.
+
 Deprecated and removed features, and other changes affecting compatibility:
 
 * The glibc.rtld.execstack now supports a compatibility mode to allow