0723a69a63
an otherwise idle system takes about 3 ticks per network interface in unregister_netdev() due to multiple calls to synchronize_rcu(), which adds up to quite a few seconds for tearing down thousands of interfaces. By flushing pending rcu callbacks in the idle loop, the system makes progress hundreds of times faster. If this is indeed a sane thing to, it probably needs to be done for other architectures than x86. And yes, the network stack shouldn't call synchronize_rcu() quite so much, but fixing that is a little more involved. Signed-off-by: Ingo Molnar <mingo@elte.hu> Signed-off-by: Thomas Gleixner <tglx@linutronix.de> |
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.. | ||
boot | ||
configs | ||
crypto | ||
ia32 | ||
kernel | ||
lguest | ||
lib | ||
mach-default | ||
mach-es7000 | ||
mach-generic | ||
mach-visws | ||
mach-voyager | ||
math-emu | ||
mm | ||
oprofile | ||
pci | ||
power | ||
vdso | ||
video | ||
xen | ||
Kconfig | ||
Kconfig.cpu | ||
Kconfig.debug | ||
Makefile | ||
Makefile_32.cpu |