Re: [PATCH 20/20] function_graph: Use bitmask to loop on fgraph entry

On Mon, 27 May 2024 09:09:49 +0900 Masami Hiramatsu (Google) wrote: > > Note, we do not care about races. If a bit is set before the gops is > > assigned, it only wastes time looking at the element and ignoring it (as > > it did before this bitmask is added). > > This is OK because anyway we c

Re: [PATCH 20/20] function_graph: Use bitmask to loop on fgraph entry

On Fri, 24 May 2024 22:37:12 -0400 Steven Rostedt wrote: > From: "Steven Rostedt (Google)" > > Instead of looping through all the elements of fgraph_array[] to see if > there's an gops attached to one and then calling its gops->func(). Create > a fgraph_array_bitmask that sets bits when an inde

[PATCH 20/20] function_graph: Use bitmask to loop on fgraph entry

From: "Steven Rostedt (Google)" Instead of looping through all the elements of fgraph_array[] to see if there's an gops attached to one and then calling its gops->func(). Create a fgraph_array_bitmask that sets bits when an index in the array is reserved (via the simple lru algorithm). Then only