From: Joel Rosdahl <joel@rosdahl.net>
Date: Wed, 8 Feb 2023 21:08:43 +0000 (+0100)
Subject: perf: Don't update stats file when there are no incremented counters
X-Git-Tag: v4.8~29
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=b59f21d608e4f7d0a2d17965aa1f2f6fa7f643ff;p=thirdparty%2Fccache.git

perf: Don't update stats file when there are no incremented counters

This can happen for instance when ccache is about to exit with a fatal
error.
---

diff --git a/src/storage/local/LocalStorage.cpp b/src/storage/local/LocalStorage.cpp
index 5134c0b7f..3e30fe8ce 100644
--- a/src/storage/local/LocalStorage.cpp
+++ b/src/storage/local/LocalStorage.cpp
@@ -340,7 +340,7 @@ LocalStorage::LocalStorage(const Config& config) : m_config(config)
 void
 LocalStorage::finalize()
 {
-  if (m_config.stats()) {
+  if (m_config.stats() && !m_counter_updates.all_zero()) {
     // Pseudo-randomly choose one of the stats files in the 256 level 2
     // directories.
     const auto bucket = getpid() % 256;