We have _is_core_over_limit() which determines if a core is currently over its busy:total tsc ratio. We use this to determine if we need to move threads off of a core that is too busy. But when we pick a core to move a thread *to* we were allowing the dst core to fill to 100%, rather than the SCHEDULER_CORE_LIMIT. This patch fixes that, which has the nice effect of keeping thread-to-core assignments much more stable when running I/O workloads. Signed-off-by: Jim Harris <james.r.harris@intel.com> Change-Id: Id98b08803939d2a25104082e6436bb8d4727d7c2 Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/9578 Community-CI: Broadcom CI <spdk-ci.pdl@broadcom.com> Community-CI: Mellanox Build Bot Reviewed-by: Ben Walker <benjamin.walker@intel.com> Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com> Tested-by: SPDK CI Jenkins <sys_sgci@intel.com> |
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