Mark Tomlinson <mark.tomlinson@xxxxxxxxxxxxxxxxxxx> wrote: > This reverts commit cc00bcaa589914096edef7fb87ca5cee4a166b5c. > > This (and the preceding) patch basically re-implemented the RCU > mechanisms of patch 784544739a25. That patch was replaced because of the > performance problems that it created when replacing tables. Now, we have > the same issue: the call to synchronize_rcu() makes replacing tables > slower by as much as an order of magnitude. Can you give roigh numbers? > See https://lore.kernel.org/patchwork/patch/151796/ for why using RCU is > not a good idea. Please, no link.
