| #! /usr/bin/env python |
| |
| # Copyright (c) 2011 ARM Limited |
| # All rights reserved |
| # |
| # The license below extends only to copyright in the software and shall |
| # not be construed as granting a license to any other intellectual |
| # property including but not limited to intellectual property relating |
| # to a hardware implementation of the functionality of the software |
| # licensed hereunder. You may use the software subject to the license |
| # terms below provided that you ensure that this notice is replicated |
| # unmodified and in its entirety in all distributions of the software, |
| # modified or unmodified, in source code or in binary form. |
| # |
| # Redistribution and use in source and binary forms, with or without |
| # modification, are permitted provided that the following conditions are |
| # met: redistributions of source code must retain the above copyright |
| # notice, this list of conditions and the following disclaimer; |
| # redistributions in binary form must reproduce the above copyright |
| # notice, this list of conditions and the following disclaimer in the |
| # documentation and/or other materials provided with the distribution; |
| # neither the name of the copyright holders nor the names of its |
| # contributors may be used to endorse or promote products derived from |
| # this software without specific prior written permission. |
| # |
| # THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS |
| # "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT |
| # LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR |
| # A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT |
| # OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, |
| # SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT |
| # LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, |
| # DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY |
| # THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT |
| # (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE |
| # OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. |
| # |
| # Authors: Giacomo Gabrielli |
| |
| # Pipeline activity viewer for the O3 CPU model. |
| |
| import optparse |
| import os |
| import sys |
| |
| |
| def process_trace(trace, outfile, cycle_time, width, color, timestamps, |
| start_tick, stop_tick, start_sn, stop_sn): |
| line = None |
| fields = None |
| # Skip lines up to region of interest |
| if start_tick != 0: |
| while True: |
| line = trace.readline() |
| if not line: return |
| fields = line.split(':') |
| if fields[0] != 'O3PipeView': continue |
| if int(fields[2]) >= start_tick: break |
| elif start_sn != 0: |
| while True: |
| line = trace.readline() |
| if not line: return |
| fields = line.split(':') |
| if fields[0] != 'O3PipeView': continue |
| if fields[1] == 'fetch' and int(fields[5]) >= start_sn: break |
| else: |
| line = trace.readline() |
| if not line: return |
| fields = line.split(':') |
| # Skip lines up to next instruction fetch |
| while fields[0] != 'O3PipeView' or fields[1] != 'fetch': |
| line = trace.readline() |
| if not line: return |
| fields = line.split(':') |
| # Print header |
| outfile.write('// f = fetch, d = decode, n = rename, p = dispatch, ' |
| 'i = issue, c = complete, r = retire\n\n') |
| outfile.write(' ' + 'timeline'.center(width) + |
| ' ' + 'tick'.center(15) + |
| ' ' + 'pc.upc'.center(12) + |
| ' ' + 'disasm'.ljust(25) + |
| ' ' + 'seq_num'.center(15)) |
| if timestamps: |
| outfile.write('timestamps'.center(25)) |
| outfile.write('\n') |
| # Region of interest |
| curr_inst = {} |
| while True: |
| if fields[0] == 'O3PipeView': |
| curr_inst[fields[1]] = int(fields[2]) |
| if fields[1] == 'fetch': |
| if ((stop_tick > 0 and int(fields[2]) > stop_tick) or |
| (stop_sn > 0 and int(fields[5]) > stop_sn)): |
| return |
| (curr_inst['pc'], curr_inst['upc']) = fields[3:5] |
| curr_inst['sn'] = int(fields[5]) |
| curr_inst['disasm'] = ' '.join(fields[6][:-1].split()) |
| elif fields[1] == 'retire': |
| print_inst(outfile, curr_inst, cycle_time, width, color, |
| timestamps) |
| line = trace.readline() |
| if not line: return |
| fields = line.split(':') |
| |
| |
| def print_inst(outfile, inst, cycle_time, width, color, timestamps): |
| if color: |
| from m5.util.terminal import termcap |
| else: |
| from m5.util.terminal import no_termcap as termcap |
| # Pipeline stages |
| stages = [{'name': 'fetch', |
| 'color': termcap.Blue + termcap.Reverse, |
| 'shorthand': 'f'}, |
| {'name': 'decode', |
| 'color': termcap.Yellow + termcap.Reverse, |
| 'shorthand': 'd'}, |
| {'name': 'rename', |
| 'color': termcap.Magenta + termcap.Reverse, |
| 'shorthand': 'n'}, |
| {'name': 'dispatch', |
| 'color': termcap.Green + termcap.Reverse, |
| 'shorthand': 'p'}, |
| {'name': 'issue', |
| 'color': termcap.Red + termcap.Reverse, |
| 'shorthand': 'i'}, |
| {'name': 'complete', |
| 'color': termcap.Cyan + termcap.Reverse, |
| 'shorthand': 'c'}, |
| {'name': 'retire', |
| 'color': termcap.Blue + termcap.Reverse, |
| 'shorthand': 'r'}] |
| # Print |
| time_width = width * cycle_time |
| base_tick = (inst['fetch'] / time_width) * time_width |
| num_lines = ((inst['retire'] - inst['fetch']) / time_width) + 1 |
| curr_color = termcap.Normal |
| for i in range(num_lines): |
| start_tick = base_tick + i * time_width |
| end_tick = start_tick + time_width |
| if num_lines == 1: # compact form |
| end_tick += (inst['fetch'] - base_tick) |
| events = [] |
| for stage_idx in range(len(stages)): |
| tick = inst[stages[stage_idx]['name']] |
| if tick >= start_tick and tick < end_tick: |
| events.append((tick % time_width, |
| stages[stage_idx]['name'], |
| stage_idx)) |
| events.sort() |
| outfile.write('[') |
| pos = 0 |
| if num_lines == 1 and events[0][2] != 0: # event is not fetch |
| curr_color = stages[events[0][2] - 1]['color'] |
| for event in events: |
| if (stages[event[2]]['name'] == 'dispatch' and |
| inst['dispatch'] == inst['issue']): |
| continue |
| outfile.write(curr_color + '.' * ((event[0] / cycle_time) - pos)) |
| outfile.write(stages[event[2]]['color'] + |
| stages[event[2]]['shorthand']) |
| if event[2] != len(stages) - 1: # event is not retire |
| curr_color = stages[event[2]]['color'] |
| else: |
| curr_color = termcap.Normal |
| pos = (event[0] / cycle_time) + 1 |
| outfile.write(curr_color + '.' * (width - pos) + termcap.Normal + |
| ']-(' + str(base_tick + i * time_width).rjust(15) + ') ') |
| if i == 0: |
| outfile.write('%s.%s %s [%s]' % ( |
| inst['pc'].rjust(10), |
| inst['upc'], |
| inst['disasm'].ljust(25), |
| str(inst['sn']).rjust(15))) |
| if timestamps: |
| outfile.write(' f=%s, r=%s' % (inst['fetch'], inst['retire'])) |
| outfile.write('\n') |
| else: |
| outfile.write('...'.center(12) + '\n') |
| |
| |
| def validate_range(my_range): |
| my_range = [int(i) for i in my_range.split(':')] |
| if (len(my_range) != 2 or |
| my_range[0] < 0 or |
| my_range[1] > 0 and my_range[0] >= my_range[1]): |
| return None |
| return my_range |
| |
| |
| def main(): |
| # Parse options |
| usage = ('%prog [OPTION]... TRACE_FILE') |
| parser = optparse.OptionParser(usage=usage) |
| parser.add_option( |
| '-o', |
| dest='outfile', |
| default=os.path.join(os.getcwd(), 'o3-pipeview.out'), |
| help="output file (default: '%default')") |
| parser.add_option( |
| '-t', |
| dest='tick_range', |
| default='0:-1', |
| help="tick range (default: '%default'; -1 == inf.)") |
| parser.add_option( |
| '-i', |
| dest='inst_range', |
| default='0:-1', |
| help="instruction range (default: '%default'; -1 == inf.)") |
| parser.add_option( |
| '-w', |
| dest='width', |
| type='int', default=80, |
| help="timeline width (default: '%default')") |
| parser.add_option( |
| '--color', |
| action='store_true', default=False, |
| help="enable colored output (default: '%default')") |
| parser.add_option( |
| '-c', '--cycle-time', |
| type='int', default=1000, |
| help="CPU cycle time in ticks (default: '%default')") |
| parser.add_option( |
| '--timestamps', |
| action='store_true', default=False, |
| help="print fetch and retire timestamps (default: '%default')") |
| (options, args) = parser.parse_args() |
| if len(args) != 1: |
| parser.error('incorrect number of arguments') |
| sys.exit(1) |
| tick_range = validate_range(options.tick_range) |
| if not tick_range: |
| parser.error('invalid range') |
| sys.exit(1) |
| inst_range = validate_range(options.inst_range) |
| if not inst_range: |
| parser.error('invalid range') |
| sys.exit(1) |
| # Process trace |
| print 'Processing trace... ', |
| with open(args[0], 'r') as trace: |
| with open(options.outfile, 'w') as out: |
| process_trace(trace, out, options.cycle_time, options.width, |
| options.color, options.timestamps, |
| *(tick_range + inst_range)) |
| print 'done!' |
| |
| |
| if __name__ == '__main__': |
| sys.path.append(os.path.join( |
| os.path.dirname(os.path.abspath(__file__)), |
| '..', 'src', 'python')) |
| main() |
