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| author |   Martin Liu <liumartin@google.com> | 2025-03-08 03:46:01 +0000 |
|---|---|---|
| committer |   Andrew Morton <akpm@linux-foundation.org> | 2025-03-17 22:07:03 -0700 |
| commit | a293aba4a584709889f77a0ad0c45746aecf1b9f (patch) | |
| tree | 47ee6e6d8b000b13ac38a3f185a1e04ea43cfe84 /tools/perf/scripts/python/export-to-postgresql.py | |
| parent | mm/page_alloc: add trace event for per-zone watermark setup (diff) | |
| download | wireguard-linux-a293aba4a584709889f77a0ad0c45746aecf1b9f.tar.xz wireguard-linux-a293aba4a584709889f77a0ad0c45746aecf1b9f.zip | |
mm/page_alloc: add trace event for per-zone lowmem reserve setup
This commit introduces the `mm_setup_per_zone_lowmem_reserve` trace
event,which provides detailed insights into the kernel's per-zone lowmem
reserve configuration.
The trace event provides precise timestamps, allowing developers to
1. Correlate lowmem reserve changes with specific kernel events and
able to diagnose unexpected kswapd or direct reclaim behavior triggered
by dynamic changes in lowmem reserve.
2. Know memory allocation failures that occur due to insufficient
lowmem reserve, by precisely correlating allocation attempts with
reserve adjustments.
Link: https://lkml.kernel.org/r/20250308034606.2036033-3-liumartin@google.com
Signed-off-by: Martin Liu <liumartin@google.com>
Acked-by: David Rientjes <rientjes@google.com>
Cc: "Masami Hiramatsu (Google)" <mhiramat@kernel.org>
Cc: Mathieu Desnoyers <mathieu.desnoyers@efficios.com>
Cc: Steven Rostedt <rostedt@goodmis.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Diffstat (limited to 'tools/perf/scripts/python/export-to-postgresql.py')
0 files changed, 0 insertions, 0 deletions