On 2017/12/6 6:39, kan.li...@intel.com wrote:
From: Kan Liang
perf_top__mmap_read has severe performance issue in
Knights Landing/Mill, when monitoring in heavy load system. It costs
several minutes to finish, which is unacceptable.
Currently, perf top is non overwrite mode. For non overwrit
From: Kan Liang
perf_top__mmap_read has severe performance issue in
Knights Landing/Mill, when monitoring in heavy load system. It costs
several minutes to finish, which is unacceptable.
Currently, perf top is non overwrite mode. For non overwrite mode, it
tries to read everything in the ringbuf
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