Re: [PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-02 Thread Steven Rostedt
On Thu, 2 May 2024 16:13:59 -0700 "Paul E. McKenney" wrote: > Very good, and thank you! > > I will drop it from RCU as soon as it shows up in either -next or in > mainline. Sounds good. I'm currently working on updates to get into -rc7 and plan to add my next work on top of that (I know, I

Re: [PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-02 Thread Paul E. McKenney
On Thu, May 02, 2024 at 05:31:00PM -0400, Steven Rostedt wrote: > On Wed, 1 May 2024 20:31:06 -0700 > "Paul E. McKenney" wrote: > > > On Thu, May 02, 2024 at 11:05:01AM +0900, Masami Hiramatsu wrote: > > > On Wed, 1 May 2024 16:12:37 -0700 > > > "Paul E. McKenney" wrote: > > > > > > > Note

Re: [PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-02 Thread Steven Rostedt
On Wed, 1 May 2024 20:31:06 -0700 "Paul E. McKenney" wrote: > On Thu, May 02, 2024 at 11:05:01AM +0900, Masami Hiramatsu wrote: > > On Wed, 1 May 2024 16:12:37 -0700 > > "Paul E. McKenney" wrote: > > > > > Note that the immediate pressure for this patch should be relieved by the > > > NAPI

Re: [PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-01 Thread Paul E. McKenney
On Thu, May 02, 2024 at 11:05:01AM +0900, Masami Hiramatsu wrote: > On Wed, 1 May 2024 16:12:37 -0700 > "Paul E. McKenney" wrote: > > > Note that the immediate pressure for this patch should be relieved by the > > NAPI patch series [1], but this sort of problem could easily arise again. > > > >

Re: [PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-01 Thread Google
On Wed, 1 May 2024 16:12:37 -0700 "Paul E. McKenney" wrote: > Note that the immediate pressure for this patch should be relieved by the > NAPI patch series [1], but this sort of problem could easily arise again. > > When running heavy test workloads with KASAN enabled, RCU Tasks grace > periods

[PATCH resend ftrace] Asynchronous grace period for register_ftrace_direct()

2024-05-01 Thread Paul E. McKenney
Note that the immediate pressure for this patch should be relieved by the NAPI patch series [1], but this sort of problem could easily arise again. When running heavy test workloads with KASAN enabled, RCU Tasks grace periods can extend for many tens of seconds, significantly slowing trace