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9a9b8b4b22
Previous patch supports the multiple time range.
For example, select the first and second 10% time slices.
perf report --time 10%/1,10%/2
We need a function to check if a timestamp is in the ranges of
[0, 10%) and [10%, 20%].
Note that it includes the last element in [10%, 20%] but it doesn't
include the last element in [0, 10%). It's to avoid the overlap.
This patch implments a new function perf_time__ranges_skip_sample
for this checking.
Change log:
v4: Let perf_time__ranges_skip_sample be compatible with
perf_time__skip_sample when only one time range.
Signed-off-by: Jin Yao <yao.jin@linux.intel.com>
Acked-by: Jiri Olsa <jolsa@kernel.org>
Cc: Alexander Shishkin <alexander.shishkin@linux.intel.com>
Cc: Andi Kleen <ak@linux.intel.com>
Cc: Kan Liang <kan.liang@intel.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1512738826-2628-5-git-send-email-yao.jin@linux.intel.com
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
29 lines
749 B
C
29 lines
749 B
C
/* SPDX-License-Identifier: GPL-2.0 */
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#ifndef _TIME_UTILS_H_
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#define _TIME_UTILS_H_
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#include <stddef.h>
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#include <linux/types.h>
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struct perf_time_interval {
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u64 start, end;
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};
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int parse_nsec_time(const char *str, u64 *ptime);
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int perf_time__parse_str(struct perf_time_interval *ptime, const char *ostr);
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int perf_time__percent_parse_str(struct perf_time_interval *ptime_buf, int num,
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const char *ostr, u64 start, u64 end);
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bool perf_time__skip_sample(struct perf_time_interval *ptime, u64 timestamp);
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bool perf_time__ranges_skip_sample(struct perf_time_interval *ptime_buf,
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int num, u64 timestamp);
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int timestamp__scnprintf_usec(u64 timestamp, char *buf, size_t sz);
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int fetch_current_timestamp(char *buf, size_t sz);
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#endif
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