From 655a09634347628abc6720ad1e2b6e1d08fdf8d9 Mon Sep 17 00:00:00 2001
From: David Goldblatt <davidgoldblatt@fb.com>
Date: Wed, 11 Mar 2020 08:14:25 -0700
Subject: [PATCH] Move bg inactivity check out of purge inner loop.

I.e. do it once per call to arena_decay_stashed instead of once per muzzy purge.
---
 src/arena.c | 4 ++--
 1 file changed, 2 insertions(+), 2 deletions(-)

diff --git a/src/arena.c b/src/arena.c
index 35fefeb1..da3fa5c4 100644
--- a/src/arena.c
+++ b/src/arena.c
@@ -660,8 +660,6 @@ arena_decay_stashed(tsdn_t *tsdn, arena_t *arena, ehooks_t *ehooks,
 			    edata_size_get(edata))) {
 				ecache_dalloc(tsdn, &arena->pa_shard, ehooks,
 				    &arena->pa_shard.ecache_muzzy, edata);
-				arena_background_thread_inactivity_check(tsdn,
-				    arena, is_background_thread);
 				break;
 			}
 			JEMALLOC_FALLTHROUGH;
@@ -727,6 +725,8 @@ arena_decay_to_limit(tsdn_t *tsdn, arena_t *arena, decay_t *decay,
 		    decay_stats, ecache, all, &decay_extents);
 		assert(npurged == npurge);
 	}
+	arena_background_thread_inactivity_check(tsdn, arena,
+	    is_background_thread);
 
 	malloc_mutex_lock(tsdn, &decay->mtx);
 	decay->purging = false;