From 19d573435799fb4aa96715a9c2f8328d27d5ac72 Mon Sep 17 00:00:00 2001 From: Richard Henwood Date: Thu, 10 Oct 2013 15:38:08 -0500 Subject: [PATCH] LUDOC-54 fix: fixed link. Now uses the correct xref, rather than link tag. Also added a conditional for some text I noticed. Signed-off-by: Richard Henwood Change-Id: I431a3fe2a092a86cd26a8f8cb6f2a678a5149b3a Reviewed-on: http://review.whamcloud.com/7920 Tested-by: Hudson --- LustreTuning.xml | 8 ++++---- 1 file changed, 4 insertions(+), 4 deletions(-) diff --git a/LustreTuning.xml b/LustreTuning.xml index 860be35..dab9254 100644 --- a/LustreTuning.xml +++ b/LustreTuning.xml @@ -127,7 +127,7 @@ <indexterm><primary>LNET</primary><secondary>tuning</secondary> </indexterm><indexterm><primary>tuning</primary><secondary>LNET</secondary></indexterm>Tuning LNET Parameters - This section describes LNET tunables. that may be necessary on some systems to improve performance. To test the performance of your Lustre network, see Chapter 23: Testing Lustre Network Performance (LNET Self-Test). + This section describes LNET tunables. that may be necessary on some systems to improve performance. To test the performance of your Lustre network, see .
Transmit and Receive Buffer Size The kernel allocates buffers for sending and receiving messages on a network. @@ -145,7 +145,7 @@ By default, this parameter is off. As always, you should test the performance to compare the impact of changing this parameter.
<indexterm><primary>tuning</primary><secondary>Network interface binding</secondary></indexterm>Binding Network Interface Against CPU Partitions - Luster 2.3 and beyond provide enhanced network interface control. The enhancement means that an administrator can bind an interface to one or more CPU Partitions. Bindings are specified as options to the lnet modules. For more information on specifying module options, see + Luster 2.3 and beyond provide enhanced network interface control. The enhancement means that an administrator can bind an interface to one or more CPU Partitions. Bindings are specified as options to the lnet modules. For more information on specifying module options, see For example, o2ib0(ib0)[0,1] will ensure that all messages for o2ib0 will be handled by LND threads executing on CPT0 and CPT1. An additional example might be: tcp1(eth0)[0]. Messages for tcp1 are handled by threads on CPT0.
<indexterm><primary>tuning</primary><secondary>Network interface credits</secondary></indexterm>Network Interface Credits @@ -154,14 +154,14 @@ ksocklnd credits=256 applies 256 credits to TCP connections. Applying 256 credits to IB connections can be achieved with: ko2iblnd credits=256 - From Lustre 2.3 and beyond, it is possible that LNet may revalidate the NI Credits and the administrator's request do not persist. + From Lustre 2.3 and beyond, it is possible that LNet may revalidate the NI Credits and the administrator's request do not persist.
<indexterm><primary>tuning</primary><secondary>router buffers</secondary></indexterm>Router Buffers Router buffers are shared by all CPU partitions. For a machine with a large number of CPTs, the router buffer number may need to be specified manually for best performance. A low number of router buffers risks starving the CPU Partitions of resources. The default setting for router buffers will typically perform well. LNet automatically sets a default value to reduce the likelihood of resource starvation An administrator may modify router buffers using the large_router_buffers parameter. For example: lnet large_router_buffers=8192 - From Lustre 2.3 and beyond, it is possible that LNet may revalidate the router buffer setting and the administrator's request do not persist. + From Lustre 2.3 and beyond, it is possible that LNet may revalidate the router buffer setting and the administrator's request do not persist.
<indexterm><primary>tuning</primary><secondary>portal round-robin</secondary></indexterm>Portal Round-Robin Portal round-robin defines the policy LNet applies to deliver events and messages to the upper layers. The upper layers are ptlrpc service or LNet selftest. -- 1.8.3.1