From: Janek Warchoł <lemniskata.bernoullego@gmail.com>
Date: Mon, 18 Mar 2013 08:00:37 +0000 (+0100)
Subject: CG: note that CPU threads affect cell count in regtests (issue 3257)
X-Git-Tag: release/2.17.15-1~17^2
X-Git-Url: https://git.donarmstrong.com/?a=commitdiff_plain;h=85d4958c021936c64b6ef9d514a6a2b0d269cc58;p=lilypond.git

CG: note that CPU threads affect cell count in regtests (issue 3257)
---

diff --git a/Documentation/contributor/regressions.itexi b/Documentation/contributor/regressions.itexi
index c155a8b923..8b600465f5 100644
--- a/Documentation/contributor/regressions.itexi
+++ b/Documentation/contributor/regressions.itexi
@@ -135,6 +135,11 @@ something is suspicious!
 @item
 Profile files: give information about
 TODO?  I don't know what they're for.
+Apparently they give some information about CPU usage.  If you got
+tons of changes in cell counts, this probably means that you compiled
+@code{make test-baseline} with a different amount of CPU threads than
+@code{make check}. Try redoing tests from scratch with the same
+number of threads each time -- see @ref{Saving time with the -j option}.
 
 @end itemize