# stackcollapse.py - format perf samples with one line per distinct call stack # # This script's output has two space-separated fields. The first is a semicolon # separated stack including the program name (from the "comm" field) and the # function names from the call stack. The second is a count: # # swapper;start_kernel;rest_init;cpu_idle;default_idle;native_safe_halt 2 # # The file is sorted according to the first field. # # Input may be created and processed using: # # perf record -a -g -F 99 sleep 60 # perf script report stackcollapse > out.stacks-folded # # (perf script record stackcollapse works too). # # Written by Paolo Bonzini # Based on Brendan Gregg's stackcollapse-perf.pl script. import os import sys from collections import defaultdict from optparse import OptionParser, make_option sys.path.append(os.environ['PERF_EXEC_PATH'] + \ '/scripts/python/Perf-Trace-Util/lib/Perf/Trace') from perf_trace_context import * from Core import * from EventClass import * # command line parsing option_list = [ # formatting options for the bottom entry of the stack make_option("--include-tid", dest="include_tid", action="store_true", default=False, help="include thread id in stack"), make_option("--include-pid", dest="include_pid", action="store_true", default=False, help="include process id in stack"), make_option("--no-comm", dest="include_comm", action="store_false", default=True, help="do not separate stacks according to comm"), make_option("--tidy-java", dest="tidy_java", action="store_true", default=False, help="beautify Java signatures"), make_option("--kernel", dest="annotate_kernel", action="store_true", default=False, help="annotate kernel functions with _[k]") ] parser = OptionParser(option_list=option_list) (opts, args) = parser.parse_args() if len(args) != 0: parser.error("unexpected command line argument") if opts.include_tid and not opts.include_comm: parser.error("requesting tid but not comm is invalid") if opts.include_pid and not opts.include_comm: parser.error("requesting pid but not comm is invalid") # event handlers lines = defaultdict(lambda: 0) def process_event(param_dict): def tidy_function_name(sym, dso): if sym is None: sym = '[unknown]' sym = sym.replace(';', ':') if opts.tidy_java: # the original stackcollapse-perf.pl script gives the # example of converting this: # Lorg/mozilla/javascript/MemberBox;.(Ljava/lang/reflect/Method;)V # to this: # org/mozilla/javascript/MemberBox:.init sym = sym.replace('<', '') sym = sym.replace('>', '') if sym[0] == 'L' and sym.find('/'): sym = sym[1:] try: sym = sym[:sym.index('(')] except ValueError: pass if opts.annotate_kernel and dso == '[kernel.kallsyms]': return sym + '_[k]' else: return sym stack = list() if 'callchain' in param_dict: for entry in param_dict['callchain']: entry.setdefault('sym', dict()) entry['sym'].setdefault('name', None) entry.setdefault('dso', None) stack.append(tidy_function_name(entry['sym']['name'], entry['dso'])) else: param_dict.setdefault('symbol', None) param_dict.setdefault('dso', None) stack.append(tidy_function_name(param_dict['symbol'], param_dict['dso'])) if opts.include_comm: comm = param_dict["comm"].replace(' ', '_') sep = "-" if opts.include_pid: comm = comm + sep + str(param_dict['sample']['pid']) sep = "/" if opts.include_tid: comm = comm + sep + str(param_dict['sample']['tid']) stack.append(comm) stack_string = ';'.join(reversed(stack)) lines[stack_string] = lines[stack_string] + 1 def trace_end(): list = lines.keys() list.sort() for stack in list: print "%s %d" % (stack, lines[stack]) -4.7.y'>linux-4.7.y Hosts the 0x221E linux distro kernel.Ubuntu
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path: root/Documentation/device-mapper/switch.rst
/kernel/log/include/drm?h=linux-6.6.y&id=851040566a008f7248cb754d5bb9a3e34f2effe5'>drm/drm_gem_vram_helper.h
AgeCommit message (Expand)Author
AgeCommit message (Expand)Author
2021-12-09drm: Replace kernel.h with the necessary inclusionsAndy Shevchenko
2021-07-05drm/vram-helper: Unexport drm_vram_helper_{alloc,release}_mm()Thomas Zimmermann
2021-06-24drm/vram-helpers: Create DRM_GEM_VRAM_PLANE_HELPER_FUNCSDaniel Vetter
2021-04-11drm/vram-helper: Use drm_gem_ttm_dumb_map_offset()Thomas Zimmermann
2021-01-21drm/ttm: device naming cleanupChristian König
2020-11-16drm: fix some kernel-doc markupsMauro Carvalho Chehab
2020-11-09drm/gem: Use struct dma_buf_map in GEM vmap ops and convert GEM backendsThomas Zimmermann
2020-09-24drm/vram-helper: switch over to the new pin interfaceChristian König
2020-09-14drm/vboxvideo: Use drm_gem_vram_vmap() interfacesThomas Zimmermann
2020-09-11drm/vram-helper: stop using TTM placement flagsChristian König
2020-07-20drm/vram-helper: Managed vram helpersThomas Zimmermann
2020-03-18drm: convert .debugfs_init() hook to return void.Wambui Karuga
2020-02-06drm/vram: Add helpers to validate a display mode's memory requirementsThomas Zimmermann
2020-01-07drm/vram-helper: Remove BO device from public interfaceThomas Zimmermann
2020-01-07drm/vram-helper: Remove interruptible flag from public interfaceThomas Zimmermann
2020-01-06drm/vram: Support scanline alignment for dumb buffersThomas Zimmermann
2019-11-27drm/vram: remove unused declarationGurchetan Singh
2019-10-24drm/vram-helpers: Add helpers for prepare_fb() and cleanup_fb()Thomas Zimmermann
2019-10-17drm/vram: drop DRM_VRAM_MM_FILE_OPERATIONSGerd Hoffmann
2019-10-17drm/vram: switch vram helper to &drm_gem_object_funcs.mmap()Gerd Hoffmann
2019-09-27drm/vram: Support top-down placement flagThomas Zimmermann
2019-09-17drm/vram: Provide vmap and vunmap operations for GEM VRAM objectsThomas Zimmermann
2019-09-12drm/vram: Unexport internal functions of VRAM MMThomas Zimmermann
2019-09-12drm/vram: Have VRAM MM call GEM VRAM functions directlyThomas Zimmermann
2019-09-12drm/vram: Move VRAM memory manager to GEM VRAM implementationThomas Zimmermann
2019-09-10drm/vram: add vram-mm debugfs fileGerd Hoffmann
2019-09-09drm/vram: Implement lazy unmapping for GEM VRAM buffersThomas Zimmermann
2019-09-09drm/vram: Add kmap ref-counting to GEM VRAM objectsThomas Zimmermann
2019-08-06drm/vram: use embedded gem objectGerd Hoffmann
2019-07-03drm/vram: Don't export driver callback functions for PRIMEThomas Zimmermann
2019-07-03drm/vram: Set GEM object functions for PRIMEThomas Zimmermann
2019-06-21drm/vram-helper: Drop drm_gem_prime_export/importDaniel Vetter
2019-06-13drm: Remove functions with kmap-object argument from GEM VRAM helpersThomas Zimmermann
2019-06-13drm: Remove lock interfaces from GEM VRAM helpersThomas Zimmermann
2019-05-22drm: Rename reserve/unreserve to lock/unlock in GEM VRAM helpersThomas Zimmermann
2019-05-22drm: Replace drm_gem_vram_push_to_system() with kunmap + unpinThomas Zimmermann
2019-05-17drm: Add drm_gem_vram_{pin/unpin}_reserved() and convert mgag200Thomas Zimmermann
2019-05-15drm: Integrate VRAM MM into struct drm_deviceThomas Zimmermann
2019-05-15drm: Add default instance for VRAM MM callback functionsThomas Zimmermann
2019-05-15drm: Add simple PRIME helpers for GEM VRAMThomas Zimmermann
2019-05-15drm: Add drm_gem_vram_fill_create_dumb() to create dumb buffersThomas Zimmermann
2019-05-15drm: Add |struct drm_gem_vram_object| callbacks for |struct drm_driver|Thomas Zimmermann
2019-05-15drm: Add |struct drm_gem_vram_object| callbacks for |struct ttm_bo_driver|Thomas Zimmermann
2019-05-15drm: Add |struct drm_gem_vram_object| and helpersThomas Zimmermann