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selftests/net: fin_ack_lat: fix latency threshold typo

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The commit message for af8c8a450b ("selftests: net: Add FIN_ACK
processing order related latency spike test") states: "if the latency
is larger than 1 second (spike), print a message". However the code
uses a threshold of 100000 us (100 ms), not 1000000 us (1 s).

The lower threshold causes false positives on slower hardware where
normal connection latency occasionally exceeds 100 ms but never
approaches the 1 s spike that indicates the actual FIN/ACK race bug.

Fix the threshold to match the documented intent.

Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Brian Grech <bgrech@redhat.com>
Link: https://patch.msgid.link/20260806151645.4172900-1-bgrech@redhat.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Brian Grech
2026-08-06 10:16:45 -05:00
committed by Jakub Kicinski
parent 001b5d347d
commit 2373107782
1 changed files with 1 additions and 1 deletions
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tools/testing/selftests/net/fin_ack_lat.c
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@@ -69,7 +69,7 @@ static void client(int port)
lat = timediff(start, end);
sum_lat += lat;
nr_lat++;
if (lat < 100000)
if (lat < 1000000)
goto close;
if (getsockname(sock, (struct sockaddr *)&laddr, &len) == -1)