patch-2.4.23 linux-2.4.23/Documentation/x86_64/boot-options.txt
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- Lines: 27
- Date:
2003-11-28 10:26:19.000000000 -0800
- Orig file:
linux-2.4.22/Documentation/x86_64/boot-options.txt
- Orig date:
2003-08-25 04:44:39.000000000 -0700
diff -urN linux-2.4.22/Documentation/x86_64/boot-options.txt linux-2.4.23/Documentation/x86_64/boot-options.txt
@@ -65,13 +65,14 @@
0 don't use an NMI watchdog
1 use the IO-APIC timer for the NMI watchdog
2 use the local APIC for the NMI watchdog using a performance counter. Note
- This will use one performance counter.
+ This will use one performance counter and the local APIC's performance
+ counter vector.
Idle loop
idle=poll
Don't do power saving in the idle loop using HLT, but poll for rescheduling
- event. This will make the CPUs eat a lot more power, but may be useful
+ events. This will make the CPUs burn 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.
@@ -145,7 +146,7 @@
off don't use the IOMMU
leak turn on simple iommu leak tracing (only when CONFIG_IOMMU_LEAK is on)
memaper[=order] allocate an own aperture over RAM with size 32MB^order.
- noforce don't force IOMMU usage. Should be fastest.
- force Force IOMMU and turn on unmap debugging.
+ noforce don't force IOMMU usage. Default.
+ force Force IOMMU for all devices.
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