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Þ'¯°ÌME[YéïĵÂCå½ Ué©Áû'Ê9%eÔðNU”ë‘ÌsD3/®+UI˜9h.WC”빓$#:pz:YÓ ¿xž* ³$Í +$kñAŠ‹†¢ Uê>¸)_š¬÷©ßAÂÔb9ÇU ¯¾á•9¯ÏÏ÷O÷¼¼Fähal1‰3Ì[Ïr•´UCksNÐ] R‘¸¥H+§Šé†c©vÖÞ0iÓ76s†î!§=ß ¼~Ô'°Ãmäoäš³ªøi1úÉ)³yV8 CLÄØÁ‘WYïi€H6ÖÑiámø^ÈY´°Ñ7¥Û*—Ñ©L«Qƒï—Ùrÿ ›£Ð*š¸ˆL©ˆ$ˆ ÷¾D§9È®«qbqC)–ˆïv´çñsÑVT­Ø, <àïºÀO«Jý·õ àfPìð .wFšir´þ’2_Y *Æ€x\« ì€9š@ Ž|F⇥ˆkZ@hÖÄ0t¿-<“‹qµ¾*ZL¤Ú)&BJpÓF5=$„at*Zš$’ÑtdûÝRI1 2Ž‰$€$I$#‰SÞ’Hë¬ï;Á$¡t$’`<(ñÇt)$‡Ð.Êf¢X’Kt=Éé$‚ˆªè¢oÝëòI%Rgcª÷ŠyI%¡‰ÿ !ñ)´õ $¤ Ô’IIGÿÙ#!/usr/bin/python2 # The MIT License (MIT) # # Copyright (c) 2015 Lance W. Shelton # # Permission is hereby granted, free of charge, to any person obtaining a copy # of this software and associated documentation files (the "Software"), to deal # in the Software without restriction, including without limitation the rights # to use, copy, modify, merge, publish, distribute, sublicense, and/or sell # copies of the Software, and to permit persons to whom the Software is # furnished to do so, subject to the following conditions: # # The above copyright notice and this permission notice shall be included in all # copies or substantial portions of the Software. # # THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, EXPRESS OR # IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF MERCHANTABILITY, # FITNESS FOR A PARTICULAR PURPOSE AND NONINFRINGEMENT. IN NO EVENT SHALL THE # AUTHORS OR COPYRIGHT HOLDERS BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER # LIABILITY, WHETHER IN AN ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, # OUT OF OR IN CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE # SOFTWARE. """ A better way to watch /proc/interrupts, especially on large NUMA machines with so many CPUs that /proc/interrupts is wider than the screen. Press '0'-'9' for node views, 't' for node totals """ __version__ = '1.0.1-pre' import os import sys import tty import termios import time from time import sleep import subprocess from optparse import OptionParser import thread import threading KEYEVENT = threading.Event() def gen_numa(numafile): """Generate NUMA info""" cpunodes = {} numacores = {} err_str = "" try: if not numafile: temp = subprocess.Popen(['numactl', '--hardware'], stdout=subprocess.PIPE, stderr=subprocess.PIPE) (output, error) = temp.communicate() temp.wait() if error: print("NUMACTL ERROR:") print(error) exit(1) else: numa_file = open(numafile, 'r') output = numa_file.read() numa_file.close() output = output.split("\n") for line in output: arr = line.split() if len(arr) < 3: continue if arr[0] == "node" and arr[2] == "cpus:": node = arr[1] numacores[node] = arr[3:] for core in arr[3:]: cpunodes[core] = node continue return numacores, cpunodes except (OSError, IOError) as err: if err.errno == 2: # No such file or directory if numafile: err_str = " (does '" + numafile + "' exist?)" else: err_str = err.strerror + " (is numactl installed?)" print("ERROR: " + err.strerror + err_str) exit(1) # input character, passed between threads INCHAR = '' def wait_for_input(): """Get a single character of input, validate""" global INCHAR acceptable_keys = ['0', '1', '2', '3', '4', '5', '6', '7', '8', '9', '0', 't'] while True: key = sys.stdin.read(1) # simple just to exit on any invalid input if not key in acceptable_keys: thread.interrupt_main() # set the new input and notify the main thread INCHAR = key KEYEVENT.set() def filter_found(name, filter_list): """Check if IRQ name matches anything in the filter list""" for filt in filter_list: if filt in name: return True return False def display_itop(batch, seconds, rowcnt, iterations, sort, totals, dispnode, zero, filters, file1, file2, overall, numafile): """Main I/O loop""" irqs = {} cpunodes = {} numacores = {} loops = 0 width = len('NODEXX') if not file1 and batch: print("Running in batch mode") elif not file1: print("interactive commands -- " "t: view totals, 0-9: view node, any other key: quit\r") if file1: intr_filename = file1 else: intr_filename = '/proc/interrupts' while True: # Grab the new display type at a time when nothing is in flux if KEYEVENT.isSet(): KEYEVENT.clear() dispnode = INCHAR if INCHAR in numacores else '-1' with open(intr_filename, 'r') as intr_file: header = intr_file.readline() cpus = [] for name in header.split(): num = name[3:] cpus.append(num) # Only query the numa information when something is missing. # This is effectively the first time and when any disabled CPUs # are enabled if not num in cpunodes: numacores, cpunodes = gen_numa(numafile) for line in intr_file.readlines(): vals = line.split() irqnum = vals[0].rstrip(':') # Optionally exclude rows that are not an IRQ number if totals is None: try: num = int(irqnum) except ValueError: continue irq = {} irq['cpus'] = [int(x) for x in vals[1:len(cpus)+1]] irq['oldcpus'] = (irqs[irqnum]['cpus'] if irqnum in irqs else [0] * len(cpus)) irq['name'] = ' '.join(vals[len(cpus)+1:]) irq['oldsum'] = irqs[irqnum]['sum'] if irqnum in irqs else 0 irq['sum'] = sum(irq['cpus']) irq['num'] = irqnum for node in numacores: oldkey = 'oldsum' + node key = 'sum' + node irq[oldkey] = (irqs[irqnum][key] if irqnum in irqs and key in irqs[irqnum] else 0) irq[key] = 0 for idx, val in enumerate(irq['cpus']): key = 'sum' + cpunodes[cpus[idx]] irq[key] = irq[key] + val if key in irq else val # save old irqs[irqnum] = irq def sort_func(val): """Sort output""" sortnum = -1 try: sortnum = int(sort) except ValueError: pass if sortnum >= 0: for node in numacores: if sortnum == int(node): return val['sum' + node] - val['oldsum' + node] if sort == 't': return val['sum'] - val['oldsum'] if sort == 'i': if val['num'].isdigit(): return int(val['num']) return sys.maxsize if sort == 'n': return val['name'] raise Exception('Invalid sort type {}'.format(sort)) # reverse sort all IRQ count sorts rev = sort not in ['i', 'n'] rows = sorted(irqs.values(), key=sort_func, reverse=rev) # determine the width required for the count field for idx, irq in enumerate(rows): width = max(width, len(str(irq['sum'] - irq['oldsum']))) if overall and loops > 0: print("" + '\r') if not file1 and (overall or loops > 0): print(time.ctime() + '\r') print("IRQs / " + str(seconds) + " second(s)" + '\r') fmtstr = ('IRQ# %' + str(width) + 's') % 'TOTAL' # node view header if int(dispnode) >= 0: node = 'NODE%s' % dispnode fmtstr += (' %' + str(width) + 's ') % node for idx, val in enumerate(irq['cpus']): if cpunodes[cpus[idx]] == dispnode: cpu = 'CPU%s' % cpus[idx] fmtstr += (' %' + str(width) + 's ') % cpu # top view header else: for node in sorted(numacores): node = 'NODE%s' % node fmtstr += (' %' + str(width) + 's ') % node fmtstr += ' NAME' if overall or loops > 0: print(fmtstr + '\r') displayed_rows = 0 for idx, irq in enumerate(rows): if filters and not filter_found(irq['name'], filters): continue total = irq['sum'] - irq['oldsum'] if zero and not total: continue # IRQ# TOTAL fmtstr = ('%4s %' + str(width) + 'd') % (irq['num'], total) # node view if int(dispnode) >= 0: oldnodesum = 'oldsum' + dispnode nodesum = 'sum' + dispnode nodecnt = irq[nodesum] - irq[oldnodesum] if zero and not nodecnt: continue fmtstr += (' %' + str(width) + 's ') % str(nodecnt) for cpu, val in enumerate(irq['cpus']): if cpunodes[cpus[cpu]] == dispnode: fmtstr += ((' %' + str(width) + 's ') % str(irq['cpus'][cpu] - irq['oldcpus'][cpu])) # top view else: for node in sorted(numacores): oldnodesum = 'oldsum' + node nodesum = 'sum' + node nodecnt = irq[nodesum] - irq[oldnodesum] fmtstr += ((' %' + str(width) + 's ') % str(nodecnt)) fmtstr += ' ' + irq['name'] if overall or loops > 0: print(fmtstr + '\r') displayed_rows += 1 if displayed_rows == rowcnt: break # Update field widths after the first iteration. Data changes # significantly between the all-time stats and the interval stats, so # this compresses the fields quite a bit. Updating every iteration # is too jumpy. if loops == 0: width = len('NODEXX') loops += 1 if loops == iterations: break if file2 and loops == 1: intr_filename = file2 continue # thread.interrupt_main() does not seem to interrupt a sleep, so break # it into tenth-of-a-second sleeps to improve user response time on exit for _ in range(0, seconds * 10): sleep(.1) def main(args): """Parse arguments, call main loop""" parser = OptionParser(description=__doc__) parser.add_option("-b", "--batch", action="store_true", help="run under batch mode") parser.add_option("-i", "--iterations", default='-1', help="iterations to run") parser.add_option("-n", "--node", default='-1', help="view a single node") parser.add_option("-r", "--rows", default='10', help="rows to display (default 10)") parser.add_option("-s", "--sort", default='t', help="column to sort on ('t':total, 'n': name, " "'i':IRQ number, '1':node1, etc) (default: 't')") parser.add_option("-t", "--time", default='5', help="update interval in seconds") parser.add_option("-z", "--zero", action="store_true", help="exclude inactive IRQs") parser.add_option("-v", "--version", action="store_true", help="get version") parser.add_option("--filter", default="", help="filter IRQs based on name matching comma " "separated filters") parser.add_option("--totals", action="store_true", help="include total rows") parser.add_option("-f", "--file1", default="", help="read a file instead of /proc/interrupts") parser.add_option("-F", "--file2", default="", help="no monitoring. Compare the samples from two files " "instead") parser.add_option("-O", "--overall", action="store_true", help="print all-time stats at the beginning") parser.add_option("-N", "--numafile", default="", help="read the NUMA info from a file, instead of " "calling numactl") options = parser.parse_args(args)[0] if options.version: print __version__ return 0 if options.filter: options.filter = options.filter.split(',') else: options.filter = [] # If file is specified, no iterations if options.file1: options.iterations = 1 options.batch = True if options.file2: if not options.file1: print("ERROR: --file2 requires --file1") return -1 options.iterations = 2 if options.file1 and not options.file2: options.overall = True # Set the terminal to unbuffered, to catch a single keypress if not options.batch: out = sys.stdin.fileno() old_settings = termios.tcgetattr(out) tty.setraw(sys.stdin.fileno()) # input thread thread.start_new_thread(wait_for_input, tuple()) else: sys.stdout = os.fdopen(sys.stdout.fileno(), 'w', 0) try: display_itop(options.batch, int(options.time), int(options.rows), int(options.iterations), options.sort, options.totals, options.node, options.zero, options.filter, options.file1, options.file2, options.overall, options.numafile) except (KeyboardInterrupt, SystemExit): pass finally: if not options.batch: termios.tcsetattr(out, termios.TCSADRAIN, old_settings) return 0 if __name__ == "__main__": sys.exit(main(sys.argv))