On Sat, 8 Mar 2025, Martin Liu wrote: > This commit introduces the `mm_setup_per_zone_wmarks` trace event, > which provides detailed insights into the kernel's per-zone watermark > configuration, offering precise timing and the ability to correlate > watermark changes with specific kernel events. > > While `/proc/zoneinfo` provides some information about zone watermarks, > this trace event offers: > > 1. The ability to link watermark changes to specific kernel events and > logic. > > 2. The ability to capture rapid or short-lived changes in watermarks > that may be missed by user-space polling > > 3. Diagnosing unexpected kswapd activity or excessive direct reclaim > triggered by rapidly changing watermarks. > > Signed-off-by: Martin Liu <liumartin@xxxxxxxxxx> Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
