AcoSail/kernel_optimize_test
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kernel_optimize_test/arch/i386/kernel
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Andi Kleen 72690a2118 [PATCH] x86: Don't use nested idle loops 
Currently the idle loop has two nested loops -- one high level
in cpu_idle and in some low level idle functions another one.

Looping in the low level idle functions breaks the idle notifiers
because interrupts waking up sleep states need to execute
exit_idle() which is only in cpu_idle().

So don't do that, only loop in cpu_idle(). This only removes
code.

In some cases e.g. poll_idle the idle loop is a little longer
now because cpu_idle checks more things. I hope that isn't a problem
ACPI idle doesn't change behaviour because it never looped anyways.

Cc: len.brown@intel.com
Cc: eranian@hpl.hp.com
Signed-off-by: Andi Kleen <ak@suse.de>
2006-12-07 02:14:03 +01:00
..
acpi [PATCH] severing fs.h, radix-tree.h -> sched.h 2006-12-04 02:00:24 -05:00
cpu [PATCH] i386: Implement "current" with the PDA 2006-12-07 02:14:03 +01:00
.gitignore [PATCH] x86: gitignore some autogenerated files for i386 2006-02-14 16:09:35 -08:00
alternative.c [PATCH] severing module.h->sched.h 2006-12-04 02:00:22 -05:00
apic.c [PATCH] i386: irqs build fix 2006-10-06 08:53:39 -07:00
apm.c [PATCH] APM: URL of APM 1.2 specs has changed 2006-10-30 12:08:42 -08:00
asm-offsets.c [PATCH] i386: Implement "current" with the PDA 2006-12-07 02:14:03 +01:00
bootflag.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
cpuid.c Driver core: convert cpuid code to use struct device 2006-12-01 14:52:00 -08:00
crash_dump.c [PATCH] kdump: read previous kernel's memory 2006-01-10 08:01:28 -08:00
crash.c [PATCH] stack overflow safe kdump: safe smp_send_nmi_allbutself() 2006-10-01 00:39:31 -07:00
doublefault.c [PATCH] i386: cpu_relax() in crash.c and doublefault.c 2006-06-25 10:00:55 -07:00
early_printk.c
efi_stub.S [PATCH] x86: remove unused include from efi_stub.S 2006-09-26 08:48:56 -07:00
efi.c BUG_ON cleanups in arch/i386 2006-10-03 23:34:58 +02:00
entry.S [PATCH] i386: Implement smp_processor_id() with the PDA 2006-12-07 02:14:03 +01:00
head.S [PATCH] i386: Use %gs as the PDA base-segment in the kernel 2006-12-07 02:14:02 +01:00
hpet.c [PATCH] i386: add missing iounmap in i386 hpet clocksource code 2006-12-07 02:14:02 +01:00
i386_ksyms.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i387.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
i8237.c [PATCH] mmc (mainly): add "or later" clause to licence statement. 2006-10-01 00:39:23 -07:00
i8253.c [PATCH] i386 Time: Avoid PIT SMP lockups 2006-10-17 08:18:42 -07:00
i8259.c [PATCH] genirq: clean up irq-flow-type naming 2006-10-17 08:18:45 -07:00
init_task.c [PATCH] nsproxy: move init_nsproxy into kernel/nsproxy.c 2006-10-02 07:57:20 -07:00
io_apic.c [PATCH] Use delayed disable mode of ioapic edge triggered interrupts 2006-11-15 09:04:32 -08:00
ioport.c [PATCH] i386: use thread_info flags for debug regs and IO bitmaps 2006-07-09 18:47:12 -07:00
irq.c [PATCH] genirq: clean up irq-flow-type naming 2006-10-17 08:18:45 -07:00
kprobes.c [PATCH] kretprobe: fix kretprobe-booster to save regs and set status 2006-11-08 18:29:24 -08:00
ldt.c [PATCH] i386: remove default_ldt, and simplify ldt-setting. 2006-12-07 02:14:01 +01:00
machine_kexec.c [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
Makefile [PATCH] i386: Do stacktracer conversion too 2006-09-26 10:52:34 +02:00
mca.c [PATCH] i386: Disallow kprobes on NMI handlers 2006-09-26 10:52:36 +02:00
microcode.c [PATCH] Regression in 2.6.19-rc microcode driver 2006-11-08 18:29:22 -08:00
module.c [PATCH] x86: SMP alternatives 2006-03-23 07:38:04 -08:00
mpparse.c [PATCH] i386: Support physical cpu hotplug for x86_64 2006-09-26 10:52:35 +02:00
msr.c Driver core: convert msr code to use struct device 2006-12-01 14:52:00 -08:00
nmi.c [PATCH] x86: all cpu backtrace 2006-12-07 02:14:01 +01:00
numaq.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
pci-dma.c PCI: arch/i386/kernel/pci-dma.c: ioremap balanced with iounmap 2006-12-01 14:36:59 -08:00
process.c [PATCH] x86: Don't use nested idle loops 2006-12-07 02:14:03 +01:00
ptrace.c [PATCH] i386: Fix places where using %gs changes the usermode ABI 2006-12-07 02:14:02 +01:00
quirks.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
reboot_fixups.c [PATCH] i386: Remove printk about reboot fixups at reboot 2006-04-09 11:53:53 -07:00
reboot.c [PATCH] x86: remove locally-defined ldt structure in favour of standard type 2006-09-26 08:48:55 -07:00
relocate_kernel.S [PATCH] i386: Avoid overwriting the current pgd (V4, i386) 2006-09-26 10:52:38 +02:00
scx200.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
setup.c [PATCH] fix efi_memory_present_wrapper() 2006-10-28 11:30:51 -07:00
sigframe.h [PATCH] __user annotations for pointers in i386 sigframe 2005-09-09 10:31:59 -07:00
signal.c [PATCH] i386: Use %gs as the PDA base-segment in the kernel 2006-12-07 02:14:02 +01:00
smp.c IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
smpboot.c [PATCH] i386: Initialize the per-CPU data area 2006-12-07 02:14:02 +01:00
srat.c [PATCH] convert i386 Summit subarch to use SRAT info for apicid_to_node calls 2006-09-29 09:18:03 -07:00
summit.c
sys_i386.c [PATCH] provide kernel_execve on all architectures 2006-10-02 07:57:23 -07:00
syscall_table.S [PATCH] epoll_pwait() 2006-10-11 11:14:21 -07:00
sysenter.c [PATCH] small fix for not releasing the mmap semaphore in i386/arch_setup_additional_pages 2006-06-28 12:05:50 -07:00
time_hpet.c [PATCH] i386: Add iounmap in error paths in hpet code 2006-12-07 02:14:02 +01:00
time.c arch/i386/kernel/time: don't shadow 'irq' function arg 2006-10-06 13:32:44 -04:00
topology.c [PATCH] i386: clean up topology.c 2006-09-26 10:52:35 +02:00
trampoline.S
traps.c [PATCH] i386: add sleazy FPU optimization 2006-12-07 02:14:01 +01:00
tsc.c [PATCH] i386 Time: Avoid PIT SMP lockups 2006-10-17 08:18:42 -07:00
vm86.c [PATCH] i386: Update sys_vm86 to cope with changed pt_regs and %gs usage 2006-12-07 02:14:03 +01:00
vmlinux.lds.S [PATCH] i386: Force data segment to be 4K aligned 2006-11-08 18:29:23 -08:00
vsyscall-int80.S
vsyscall-note.S
vsyscall-sigreturn.S [PATCH] Mark unwind info for signal trampolines in vDSOs 2006-03-31 12:18:52 -08:00
vsyscall-sysenter.S [PATCH] vdso: randomize the i386 vDSO by moving it into a vma 2006-06-27 17:32:38 -07:00
vsyscall.lds.S [PATCH] vDSO hash-style fix 2006-07-31 13:28:43 -07:00
vsyscall.S