d241aac798
On an (even slightly) oversubscribed system, spinlocks are quickly becoming a bottleneck, as some vcpus are spinning, waiting for a lock to be released, while the vcpu holding the lock may not be running at all. The solution is to trap blocking WFEs and tell KVM that we're now spinning. This ensures that other vpus will get a scheduling boost, allowing the lock to be released more quickly. Also, using CONFIG_HAVE_KVM_CPU_RELAX_INTERCEPT slightly improves the performance when the VM is severely overcommited. Acked-by: Christoffer Dall <christoffer.dall@linaro.org> Signed-off-by: Marc Zyngier <marc.zyngier@arm.com> |
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| .. | ||
| emulate.c | ||
| guest.c | ||
| handle_exit.c | ||
| hyp-init.S | ||
| hyp.S | ||
| inject_fault.c | ||
| Kconfig | ||
| Makefile | ||
| regmap.c | ||
| reset.c | ||
| sys_regs.c | ||
| sys_regs.h | ||
| sys_regs_generic_v8.c | ||