From 088cbc951acb8835ed002b845b2f2f9760798531 Mon Sep 17 00:00:00 2001 From: Zygo Blaxell Date: Tue, 26 Nov 2024 22:23:55 -0500 Subject: [PATCH] docs: event counter updates after readahead sanity improvements Signed-off-by: Zygo Blaxell --- docs/event-counters.md | 4 +++- 1 file changed, 3 insertions(+), 1 deletion(-) diff --git a/docs/event-counters.md b/docs/event-counters.md index c78c11d..51b73f7 100644 --- a/docs/event-counters.md +++ b/docs/event-counters.md @@ -264,7 +264,9 @@ readahead The `readahead` event group consists of events related to calls to `posix_fadvise`. - * `readahead_ms`: Total time spent running `posix_fadvise(..., POSIX_FADV_WILLNEED)` aka `readahead()`. + * `readahead_clear`: Number of times the duplicate read cache was cleared. + * `readahead_skip`: Number of times a duplicate read was identified in the cache and skipped. + * `readahead_ms`: Total time spent emulating readahead in user-space (kernel readahead is not measured). * `readahead_unread_ms`: Total time spent running `posix_fadvise(..., POSIX_FADV_DONTNEED)`. replacedst