From: Sage Weil <sage@redhat.com>
Date: Fri, 20 Jan 2017 18:57:42 +0000 (-0500)
Subject: os/bluestore/BlueFS: preallocate larger write buffer
X-Git-Tag: v12.0.0~99^2~2
X-Git-Url: http://git-server-git.apps.pok.os.sepia.ceph.com/?a=commitdiff_plain;h=7a53d4389eeef15d4cc374573974b014caf68a3a;p=ceph.git

os/bluestore/BlueFS: preallocate larger write buffer

Signed-off-by: Sage Weil <sage@redhat.com>
---

diff --git a/src/os/bluestore/BlueFS.h b/src/os/bluestore/BlueFS.h
index f9754306e500..a18b3732bcf4 100644
--- a/src/os/bluestore/BlueFS.h
+++ b/src/os/bluestore/BlueFS.h
@@ -130,7 +130,8 @@ public:
     FileWriter(FileRef f)
       : file(f),
 	pos(0),
-	buffer_appender(buffer.get_page_aligned_appender()) {
+	buffer_appender(buffer.get_page_aligned_appender(
+			  g_conf->bluefs_alloc_size / CEPH_PAGE_SIZE)) {
       ++file->num_writers;
       iocv.fill(nullptr);
     }