diff options
| author | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-30 11:15:14 -0800 |
|---|---|---|
| committer | Linus Torvalds <torvalds@linux-foundation.org> | 2018-01-30 11:15:14 -0800 |
| commit | d8b91dde38f4c43bd0bbbf17a90f735b16aaff2c (patch) | |
| tree | bd72dabf6e4b23e060fce429c87e60504f69de54 /tools/perf/scripts/python/mem-phys-addr.py | |
| parent | 5e7481a25e90b661d1dbbba18be3fd3dfe12ec6f (diff) | |
| parent | e4c1091cb495d9cbec8956d642644a71a1689958 (diff) | |
| download | lwn-d8b91dde38f4c43bd0bbbf17a90f735b16aaff2c.tar.gz lwn-d8b91dde38f4c43bd0bbbf17a90f735b16aaff2c.zip | |
Merge branch 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip
Pull perf updates from Ingo Molnar:
"Kernel side changes:
- Clean up the x86 instruction decoder (Masami Hiramatsu)
- Add new uprobes optimization for PUSH instructions on x86 (Yonghong
Song)
- Add MSR_IA32_THERM_STATUS to the MSR events (Stephane Eranian)
- Fix misc bugs, update documentation, plus various cleanups (Jiri
Olsa)
There's a large number of tooling side improvements:
- Intel-PT/BTS improvements (Adrian Hunter)
- Numerous 'perf trace' improvements (Arnaldo Carvalho de Melo)
- Introduce an errno code to string facility (Hendrik Brueckner)
- Various build system improvements (Jiri Olsa)
- Add support for CoreSight trace decoding by making the perf tools
use the external openCSD (Mathieu Poirier, Tor Jeremiassen)
- Add ARM Statistical Profiling Extensions (SPE) support (Kim
Phillips)
- libtraceevent updates (Steven Rostedt)
- Intel vendor event JSON updates (Andi Kleen)
- Introduce 'perf report --mmaps' and 'perf report --tasks' to show
info present in 'perf.data' (Jiri Olsa, Arnaldo Carvalho de Melo)
- Add infrastructure to record first and last sample time to the
perf.data file header, so that when processing all samples in a
'perf record' session, such as when doing build-id processing, or
when specifically requesting that that info be recorded, use that
in 'perf report --time', that also got support for percent slices
in addition to absolute ones.
I.e. now it is possible to ask for the samples in the 10%-20% time
slice of a perf.data file (Jin Yao)
- Allow system wide 'perf stat --per-thread', sorting the result (Jin
Yao)
E.g.:
[root@jouet ~]# perf stat --per-thread --metrics IPC
^C
Performance counter stats for 'system wide':
make-22229 23,012,094,032 inst_retired.any # 0.8 IPC
cc1-22419 692,027,497 inst_retired.any # 0.8 IPC
gcc-22418 328,231,855 inst_retired.any # 0.9 IPC
cc1-22509 220,853,647 inst_retired.any # 0.8 IPC
gcc-22486 199,874,810 inst_retired.any # 1.0 IPC
as-22466 177,896,365 inst_retired.any # 0.9 IPC
cc1-22465 150,732,374 inst_retired.any # 0.8 IPC
gcc-22508 112,555,593 inst_retired.any # 0.9 IPC
cc1-22487 108,964,079 inst_retired.any # 0.7 IPC
qemu-system-x86-2697 21,330,550 inst_retired.any # 0.3 IPC
systemd-journal-551 20,642,951 inst_retired.any # 0.4 IPC
docker-containe-17651 9,552,892 inst_retired.any # 0.5 IPC
dockerd-current-9809 7,528,586 inst_retired.any # 0.5 IPC
make-22153 12,504,194,380 inst_retired.any # 0.8 IPC
python2-22429 12,081,290,954 inst_retired.any # 0.8 IPC
<SNIP>
python2-22429 15,026,328,103 cpu_clk_unhalted.thread
cc1-22419 826,660,193 cpu_clk_unhalted.thread
gcc-22418 365,321,295 cpu_clk_unhalted.thread
cc1-22509 279,169,362 cpu_clk_unhalted.thread
gcc-22486 210,156,950 cpu_clk_unhalted.thread
<SNIP>
5.638075538 seconds time elapsed
[root@jouet ~]#
- Improve shell auto-completion of perf events (Jin Yao)
- 'perf probe' improvements (Masami Hiramatsu)
- Improve PMU infrastructure to support amp64's ThunderX2
implementation defined core events (Ganapatrao Kulkarni)
- Various annotation related improvements and fixes (Thomas Richter)
- Clarify usage of 'overwrite' and 'backward' in the evlist/mmap
code, removing the 'overwrite' parameter from several functions as
it was always used it as 'false' (Wang Nan)
- Fix/improve 'perf record' reverse recording support (Wang Nan)
- Improve command line options documentation (Sihyeon Jang)
- Optimize sample parsing for ordering events, where we don't need to
parse all the PERF_SAMPLE_ bits, just the ones leading to the
timestamp needed to reorder events (Jiri Olsa)
- Generalize the annotation code to support other source information
besides objdump/DWARF obtained ones, starting with python scripts,
that will is slated to be merged soon (Jiri Olsa)
- ... and a lot more that I failed to list, see the shortlog and
changelog for details"
* 'perf-core-for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip: (262 commits)
perf trace beauty flock: Move to separate object file
perf evlist: Remove fcntl.h from evlist.h
perf trace beauty futex: Beautify FUTEX_BITSET_MATCH_ANY
perf trace: Do not print from time delta for interrupted syscall lines
perf trace: Add --print-sample
perf bpf: Remove misplaced __maybe_unused attribute
MAINTAINERS: Adding entry for CoreSight trace decoding
perf tools: Add mechanic to synthesise CoreSight trace packets
perf tools: Add full support for CoreSight trace decoding
pert tools: Add queue management functionality
perf tools: Add functionality to communicate with the openCSD decoder
perf tools: Add support for decoding CoreSight trace data
perf tools: Add decoder mechanic to support dumping trace data
perf tools: Add processing of coresight metadata
perf tools: Add initial entry point for decoder CoreSight traces
perf tools: Integrating the CoreSight decoding library
perf vendor events intel: Update IvyTown files to V20
perf vendor events intel: Update IvyBridge files to V20
perf vendor events intel: Update BroadwellDE events to V7
perf vendor events intel: Update SkylakeX events to V1.06
...
Diffstat (limited to 'tools/perf/scripts/python/mem-phys-addr.py')
| -rw-r--r-- | tools/perf/scripts/python/mem-phys-addr.py | 95 |
1 files changed, 95 insertions, 0 deletions
diff --git a/tools/perf/scripts/python/mem-phys-addr.py b/tools/perf/scripts/python/mem-phys-addr.py new file mode 100644 index 000000000000..ebee2c5ae496 --- /dev/null +++ b/tools/perf/scripts/python/mem-phys-addr.py @@ -0,0 +1,95 @@ +# mem-phys-addr.py: Resolve physical address samples +# SPDX-License-Identifier: GPL-2.0 +# +# Copyright (c) 2018, Intel Corporation. + +from __future__ import division +import os +import sys +import struct +import re +import bisect +import collections + +sys.path.append(os.environ['PERF_EXEC_PATH'] + \ + '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') + +#physical address ranges for System RAM +system_ram = [] +#physical address ranges for Persistent Memory +pmem = [] +#file object for proc iomem +f = None +#Count for each type of memory +load_mem_type_cnt = collections.Counter() +#perf event name +event_name = None + +def parse_iomem(): + global f + f = open('/proc/iomem', 'r') + for i, j in enumerate(f): + m = re.split('-|:',j,2) + if m[2].strip() == 'System RAM': + system_ram.append(long(m[0], 16)) + system_ram.append(long(m[1], 16)) + if m[2].strip() == 'Persistent Memory': + pmem.append(long(m[0], 16)) + pmem.append(long(m[1], 16)) + +def print_memory_type(): + print "Event: %s" % (event_name) + print "%-40s %10s %10s\n" % ("Memory type", "count", "percentage"), + print "%-40s %10s %10s\n" % ("----------------------------------------", \ + "-----------", "-----------"), + total = sum(load_mem_type_cnt.values()) + for mem_type, count in sorted(load_mem_type_cnt.most_common(), \ + key = lambda(k, v): (v, k), reverse = True): + print "%-40s %10d %10.1f%%\n" % (mem_type, count, 100 * count / total), + +def trace_begin(): + parse_iomem() + +def trace_end(): + print_memory_type() + f.close() + +def is_system_ram(phys_addr): + #/proc/iomem is sorted + position = bisect.bisect(system_ram, phys_addr) + if position % 2 == 0: + return False + return True + +def is_persistent_mem(phys_addr): + position = bisect.bisect(pmem, phys_addr) + if position % 2 == 0: + return False + return True + +def find_memory_type(phys_addr): + if phys_addr == 0: + return "N/A" + if is_system_ram(phys_addr): + return "System RAM" + + if is_persistent_mem(phys_addr): + return "Persistent Memory" + + #slow path, search all + f.seek(0, 0) + for j in f: + m = re.split('-|:',j,2) + if long(m[0], 16) <= phys_addr <= long(m[1], 16): + return m[2] + return "N/A" + +def process_event(param_dict): + name = param_dict["ev_name"] + sample = param_dict["sample"] + phys_addr = sample["phys_addr"] + + global event_name + if event_name == None: + event_name = name + load_mem_type_cnt[find_memory_type(phys_addr)] += 1 |