Re: [PATCH 3/3] ring-buffer: Add rb_time_t 64 bit operations for speeding up 32 bit

2020-06-26 Thread kernel test robot
Hi Steven, Thank you for the patch! Perhaps something to improve: [auto build test WARNING on linus/master] [also build test WARNING on v5.8-rc2 next-20200626] [cannot apply to tip/perf/core linux/master] [If your patch is applied to the wrong git tree, kindly drop us a note. And when submitting

[PATCH 3/3] ring-buffer: Add rb_time_t 64 bit operations for speeding up 32 bit

2020-06-26 Thread Steven Rostedt
From: "Steven Rostedt (VMware)" After a discussion with the new time algorithm to have nested events still have proper time keeping but required using local64_t atomic operations. Mathieu was concerned about the performance this would have on 32 bit machines, as in most cases, atomic 64 bit opera