diff --git a/remotefilelog/remotefilectx.py b/remotefilelog/remotefilectx.py
--- a/remotefilelog/remotefilectx.py
+++ b/remotefilelog/remotefilectx.py
@@ -6,6 +6,7 @@
 # GNU General Public License version 2 or any later version.
 
 import collections
+import time
 from mercurial.i18n import _
 from mercurial.node import bin, hex, nullid, nullrev
 from mercurial import context, util, error, ancestor, phases, extensions
@@ -333,6 +334,7 @@
 
     def _linknodeviafastlog(self, repo, path, srcrev, fnode, cl, mfl,
                             commonlogkwargs):
+        start = time.time()
         reponame = repo.ui.config('fbconduit', 'reponame')
         logmsg = ''
         if self._conduit is None:
@@ -363,7 +365,9 @@
             logmsg = 'fastlog failed (%s)' % e
             return None
         finally:
-            repo.ui.log('linkrevfixup', logmsg, **commonlogkwargs)
+            elapsed = time.time() - start
+            repo.ui.log('linkrevfixup', logmsg, elapsed=elapsed * 1000,
+                        **commonlogkwargs)
 
 
     def _verifylinknode(self, revs, linknode):
diff --git a/tests/test-remotefilelog-linknodes.t b/tests/test-remotefilelog-linknodes.t
--- a/tests/test-remotefilelog-linknodes.t
+++ b/tests/test-remotefilelog-linknodes.t
@@ -340,7 +340,7 @@
 Silencing stdout because we are interested only in ui.log output
   $ hg log -f x -T '{node|short} {desc} {phase} {files}\n' > /dev/null
   linkrevfixup: adjusting linknode (filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test)
-  linkrevfixup: fastlog succeded (filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test)
+  linkrevfixup: fastlog succeded (elapsed=*, filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test) (glob)
 
 Fastlog fails
   $ cat > $TESTTMP/bad_conduit.py <<EOF
@@ -352,4 +352,4 @@
   $ rm $TESTTMP/bad_conduit.pyc
   $ hg log -f x -T '{node|short} {desc} {phase} {files}\n' > /dev/null
   linkrevfixup: adjusting linknode (filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test)
-  linkrevfixup: fastlog failed (error) (filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test)
+  linkrevfixup: fastlog failed (error) (elapsed=*, filepath=x, fnode=d4a3ed9310e5bd9887e3bf779da5077efab28216, reponame=master, revs=a5957b6bf0bdeb9b96368bddd2838004ad966b7d, user=test) (glob)