mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2025-02-05 05:55:05 +07:00
81f338e970
Currently IRQ_EFFECTIVE_AFF_MASK is enabled for ARM_GIC and ARM_GIC3, so it only allows a single target CPU in the affinity mask to process interrupts and also interrupt thread, and the performance of using threaded irq is almost the same as tasklet. But if the config is not enabled, the interrupt thread will be allowed all the CPUs in the affinity mask. At that situation it improves the performance (about 20%). Note: IRQ_EFFECTIVE_AFF_MASK is configured differently for different architecture chip, and it seems to be better to make it be configured easily. Link: https://lore.kernel.org/r/1579522957-4393-2-git-send-email-john.garry@huawei.com Signed-off-by: Xiang Chen <chenxiang66@hisilicon.com> Signed-off-by: John Garry <john.garry@huawei.com> Signed-off-by: Martin K. Petersen <martin.petersen@oracle.com> |
||
|---|---|---|
| .. | ||
| hisi_sas_main.c | ||
| hisi_sas_v1_hw.c | ||
| hisi_sas_v2_hw.c | ||
| hisi_sas_v3_hw.c | ||
| hisi_sas.h | ||
| Kconfig | ||
| Makefile | ||