From: Frank Ch. Eigler <fche@redhat.com>
Date: Wed, 14 Sep 2011 15:46:55 +0000 (-0400)
Subject: BZ738242: tweak memory allocation estimation logic
X-Git-Tag: release-1.7~153^2~25
X-Git-Url: https://sourceware.org/git/?a=commitdiff_plain;h=66abcb3cf44caac25f3f20c2147cde961e31b633;p=systemtap.git

BZ738242: tweak memory allocation estimation logic

* runtime/transport/relay_v2.c (_stp_transport_data_fs_init):
  In BULK_MODE, stop overestimating the number of pages we will
  need: it's num_online_cpus rather than num_possible_cpus.
---

diff --git a/runtime/transport/relay_v2.c b/runtime/transport/relay_v2.c
index ff621a489..763436de8 100644
--- a/runtime/transport/relay_v2.c
+++ b/runtime/transport/relay_v2.c
@@ -305,7 +305,7 @@ static int _stp_transport_data_fs_init(void)
 	/* Create "trace" file. */
 	npages = _stp_subbuf_size * _stp_nsubbufs;
 #ifdef STP_BULKMODE
-	npages *= num_possible_cpus();
+	npages *= num_online_cpus();
 #endif
 	npages >>= PAGE_SHIFT;
 	si_meminfo(&si);