From 7796576d2076578e1c4527a8707a08cb5388ebda Mon Sep 17 00:00:00 2001 From: "Tim Slavin (MongoDB)" Date: Wed, 20 Aug 2014 12:52:53 -0400 Subject: [PATCH] DOCS-3815: Use noop scheduler for virtualized disks --- source/administration/production-notes.txt | 7 +++++++ 1 file changed, 7 insertions(+) diff --git a/source/administration/production-notes.txt b/source/administration/production-notes.txt index a437b0051f1..1e1c75885fb 100644 --- a/source/administration/production-notes.txt +++ b/source/administration/production-notes.txt @@ -366,6 +366,13 @@ MongoDB on Virtual Environments The section describes considerations when running MongoDB in some of the more common virtual environments. +.. note:: + + Local block devices attached to virtual machine instances via the + hypervisor should use a *noop* scheduler for best performance. The + *noop* scheduler allows the operating system to defer I/O scheduling to + the underlying hypervisor. + EC2 ```