From: Maria Matejka <mq@ucw.cz>
Date: Tue, 18 Jun 2024 09:02:51 +0000 (+0200)
Subject: No page flush before polling
X-Git-Tag: v3.0.0~128
X-Git-Url: http://git.ipfire.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=dda37842dcf82dae8e441a6c2bcef4b0ffae3429;p=thirdparty%2Fbird.git

No page flush before polling

The maximum amount of locally kept pages is 128 so we can just
well keep the half-meg of RAM allocated and prepared for future use.
---

diff --git a/sysdep/unix/io-loop.c b/sysdep/unix/io-loop.c
index 49e9f2db1..b69adc7ec 100644
--- a/sysdep/unix/io-loop.c
+++ b/sysdep/unix/io-loop.c
@@ -879,16 +879,13 @@ bird_thread_main(void *arg)
     int idle_force = (timeout < 0) || (timeout > 300);
     int busy_now = (timeout < 5) && !idle_force;
 
-    /* Nothing to do right now, flush local hot page cache */
+    /* Nothing to do right now but there may be some loops for pickup */
     if (idle_force)
     {
       LOCK_DOMAIN(attrs, thr->group->domain);
       if (!EMPTY_LIST(thr->group->loops))
 	timeout = 0;
       UNLOCK_DOMAIN(attrs, thr->group->domain);
-
-      if (timeout)
-	flush_local_pages();
     }
 
     if (busy_now && !thr->busy_active && (++thr->busy_counter == 4))