On 09/27, Liao Chang wrote: > > The uprobe handler allocates xol slot from xol_area and quickly release > it in the single-step handler. The atomic operations on the xol bitmap > and slot_count lead to expensive cache line bouncing between multiple > CPUs.
Liao, could you please check if this series
[PATCH 0/2] uprobes: kill xol_area->slot_count
https://lore.kernel.org/all/[email protected]/
makes any difference performance-wise in your testing?
Oleg.
