# HG changeset patch
# User Pierre-Yves David <pierre-yves.da...@octobus.net>
# Date 1570513758 14400
#      Tue Oct 08 01:49:18 2019 -0400
# Node ID 8a6ad5abbf29c925d1b2610714f9e68df1bbc8e1
# Parent  701f359a9899d1a8b2cafea2aadc1f667dacd385
# EXP-Topic perf-doc
# Available At https://bitbucket.org/octobus/mercurial-devel/
#              hg pull https://bitbucket.org/octobus/mercurial-devel/ -r 
8a6ad5abbf29
perf: document `perfdirfoldmap`

diff --git a/contrib/perf.py b/contrib/perf.py
--- a/contrib/perf.py
+++ b/contrib/perf.py
@@ -1163,6 +1163,10 @@ def perfdirstatefoldmap(ui, repo, **opts
 
 @command(b'perfdirfoldmap', formatteropts)
 def perfdirfoldmap(ui, repo, **opts):
+    """benchmap a `dirstate._map.dirfoldmap.get()` request
+
+    The dirstate dirfoldmap cache is dropped between every request.
+    """
     opts = _byteskwargs(opts)
     timer, fm = gettimer(ui, opts)
     dirstate = repo.dirstate
diff --git a/tests/test-contrib-perf.t b/tests/test-contrib-perf.t
--- a/tests/test-contrib-perf.t
+++ b/tests/test-contrib-perf.t
@@ -105,7 +105,7 @@ perfstatus
    perfctxfiles  (no help text available)
    perfdiffwd    Profile diff of working directory changes
    perfdirfoldmap
-                 (no help text available)
+                 benchmap a 'dirstate._map.dirfoldmap.get()' request
    perfdirs      (no help text available)
    perfdirstate  benchmap the time necessary to load a dirstate from scratch
    perfdirstatedirs
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