Re: [PATCH v5 03/15] ring-buffer: Add interface for configuring trace sub buffer size

On Wed, 20 Dec 2023 09:40:30 -0500 Steven Rostedt wrote: > On Wed, 20 Dec 2023 23:26:19 +0900 > Masami Hiramatsu (Google) wrote: > > > On Tue, 19 Dec 2023 13:54:17 -0500 > > Steven Rostedt wrote: > > > > > +/** > > > + * ring_buffer_subbuf_order_set - set the size of ring buffer sub page. > >

Re: [PATCH v5 03/15] ring-buffer: Add interface for configuring trace sub buffer size

On Wed, 20 Dec 2023 23:26:19 +0900 Masami Hiramatsu (Google) wrote: > On Tue, 19 Dec 2023 13:54:17 -0500 > Steven Rostedt wrote: > > > +/** > > + * ring_buffer_subbuf_order_set - set the size of ring buffer sub page. > > + * @buffer: The ring_buffer to set the new page size. > > + * @order: Ord

Re: [PATCH v5 03/15] ring-buffer: Add interface for configuring trace sub buffer size

On Tue, 19 Dec 2023 13:54:17 -0500 Steven Rostedt wrote: > +/** > + * ring_buffer_subbuf_order_set - set the size of ring buffer sub page. > + * @buffer: The ring_buffer to set the new page size. > + * @order: Order of the system pages in one sub buffer page > + * > + * By default, one ring buffe

[PATCH v5 03/15] ring-buffer: Add interface for configuring trace sub buffer size

From: "Tzvetomir Stoyanov (VMware)" The trace ring buffer sub page size can be configured, per trace instance. A new ftrace file "buffer_subbuf_order" is added to get and set the size of the ring buffer sub page for current trace instance. The size must be an order of system page size, that's why