From 4f4d2956b2499e6ac73c5741d8a2965221285124 Mon Sep 17 00:00:00 2001 From: Andi Kleen Date: Thu, 28 Jul 2005 21:15:34 -0700 Subject: [PATCH] --- yaml --- r: 5379 b: refs/heads/master c: ef4d7cbea773a77b36e732779cab4018ba2c037b h: refs/heads/master i: 5377: 8bc6b5039d450a84d8e31adbba44cf38e57664e1 5375: 7e47747ab8fade628bb65fae39d5643f92556781 v: v3 --- [refs] | 2 +- trunk/Documentation/x86_64/boot-options.txt | 10 ++++++---- 2 files changed, 7 insertions(+), 5 deletions(-) diff --git a/[refs] b/[refs] index 63fd6653f8d7..c7749e62e247 100644 --- a/[refs] +++ b/[refs] @@ -1,2 +1,2 @@ --- -refs/heads/master: a54649b801e5fe69755dc55e6589f7a65af25d79 +refs/heads/master: ef4d7cbea773a77b36e732779cab4018ba2c037b diff --git a/trunk/Documentation/x86_64/boot-options.txt b/trunk/Documentation/x86_64/boot-options.txt index b9e6be00cadf..476c0c22fbb7 100644 --- a/trunk/Documentation/x86_64/boot-options.txt +++ b/trunk/Documentation/x86_64/boot-options.txt @@ -47,7 +47,7 @@ Timing notsc Don't use the CPU time stamp counter to read the wall time. This can be used to work around timing problems on multiprocessor systems - with not properly synchronized CPUs. Only useful with a SMP kernel + with not properly synchronized CPUs. report_lost_ticks Report when timer interrupts are lost because some code turned off @@ -74,6 +74,9 @@ Idle loop event. This will make the CPUs eat a lot more power, but may be useful to get slightly better performance in multiprocessor benchmarks. It also makes some profiling using performance counters more accurate. + Please note that on systems with MONITOR/MWAIT support (like Intel EM64T + CPUs) this option has no performance advantage over the normal idle loop. + It may also interact badly with hyperthreading. Rebooting @@ -178,6 +181,5 @@ Debugging Misc noreplacement Don't replace instructions with more appropiate ones - for the CPU. This may be useful on asymmetric MP systems - where some CPU have less capabilities than the others. - + for the CPU. This may be useful on asymmetric MP systems + where some CPU have less capabilities than the others.