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  1. RHEL
  2. RHEL-139419

glibc: Include glibc trylock patch fix in RHEL update releases [rhel-10]

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      Please include following patch in RHEL update releases. We see significant performance improvement in high cache contention workload.

      This patch is already backported all the way till 2.28.

      commit 63716823dbad9482e09972907ae98e9cb00f9b86
Author: Sunil K Pandey <sunil.k.pandey@intel.com>
Date:   Tue Dec 9 08:57:44 2025 -0800

    nptl: Optimize trylock for high cache contention workloads (BZ #33704)
    
    Check lock availability before acquisition to reduce cache line
    bouncing.  Significantly improves trylock throughput on multi-core
    systems under heavy contention.
    
    Tested on x86_64.
    
    Fixes BZ #33704.
    
    Co-authored-by: Alex M Wells <alex.m.wells@intel.com>
    Reviewed-by: Wilco Dijkstra  <Wilco.Dijkstra@arm.com>
 

              glibc-bugzilla Platform Tools - Libraries Bot
              sunil.k.pandey Sunil K Pandey
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