| import os, time, re, logging |
| from autotest_lib.client.bin import test, utils |
| from autotest_lib.client.bin.net import net_utils |
| from autotest_lib.client.common_lib import error |
| |
| MPSTAT_IX = 0 |
| NETPERF_IX = 1 |
| |
| class network_netperf2(test.test): |
| version = 1 |
| |
| # ftp://ftp.netperf.org/netperf/netperf-2.4.4.tar.gz |
| def setup(self, tarball = 'netperf-2.4.4.tar.gz'): |
| self.job.require_gcc() |
| tarball = utils.unmap_url(self.bindir, tarball, self.tmpdir) |
| utils.extract_tarball_to_dir(tarball, self.srcdir) |
| os.chdir(self.srcdir) |
| |
| utils.system('patch -p0 < ../wait_before_data.patch') |
| # Fixing up a compile issue under newer systems that have |
| # CPU_SET_S defined on /usr/include/sched.h, backported from |
| # upstream svn trunk |
| utils.system('patch -p0 < ../fix_netperf_build.patch') |
| utils.configure() |
| utils.make() |
| |
| self.job.setup_dep(['sysstat']) |
| |
| |
| def initialize(self): |
| self.client_prog = '%s' % os.path.join(self.srcdir, 'src/netperf') |
| self.valid_tests = ['TCP_STREAM', 'TCP_MAERTS', 'TCP_RR', 'TCP_CRR', |
| 'TCP_SENDFILE', 'UDP_STREAM', 'UDP_RR'] |
| self.results = [] |
| self.actual_times = [] |
| self.netif = '' |
| self.network = net_utils.network() |
| self.network_utils = net_utils.network_utils() |
| |
| dep = 'sysstat' |
| dep_dir = os.path.join(self.autodir, 'deps', dep) |
| self.job.install_pkg(dep, 'dep', dep_dir) |
| |
| |
| def run_once(self, server_ip, client_ip='', test = 'TCP_STREAM', |
| test_time = 15, stream_list = [1], test_specific_args = '', |
| cpu_affinity = '', dev = '', bidi = False, wait_time = 5): |
| """ |
| server_ip: IP address of host running netserver |
| client_ip: IP address of host running netperf client(s) |
| test: one of TCP_STREAM, TCP_MEARTS, TCP_RR, TCP_CRR, TCP_SENDFILE, |
| UDP_STREAM or UDP_RR |
| test_time: time to run the test for in seconds |
| stream_list: list of number of netperf streams to launch |
| test_specific_args: Optional test specific args. For example to set |
| the request,response size for RR tests to 200,100, set it |
| to: '-- -r 200,100'. Or, to set the send buffer size of STREAM |
| tests to 200, set it to: '-- -m 200' |
| cpu_affinity: netperf/netserver processes will get taskset to the |
| cpu_affinity. cpu_affinity is specified as a bitmask in hex |
| without the leading 0x. For example, to run on CPUs 0 & 5, |
| cpu_affinity needs to be '21' |
| dev: device on which to run traffic on. For example, to run on |
| inteface eth1, set it to 'eth1'. |
| bidi: bi-directional traffic. This is supported for TCP_STREAM |
| test only. The RR & CRR tests are bi-directional by nature. |
| wait_time: Time to wait after establishing data/control connections |
| but before sending data traffic. |
| """ |
| if test not in self.valid_tests: |
| raise error.TestError('invalid test specified') |
| |
| self.test = test |
| self.test_time = test_time |
| self.wait_time = wait_time |
| self.stream_list = stream_list |
| self.bidi = bidi |
| |
| # If a specific device has been requested, configure it. |
| if dev: |
| timeout = 60 |
| self.configure_interface(dev, client_ip) |
| self.ping(server_ip, timeout) |
| |
| for num_streams in stream_list: |
| self.client(server_ip, test, test_time, num_streams, |
| test_specific_args, cpu_affinity) |
| |
| self.restore_interface() |
| |
| |
| def configure_interface(self, dev, ip_addr): |
| self.netif = net_utils.netif(dev) |
| self.netif.up() |
| if self.netif.get_ipaddr() != ip_addr: |
| self.netif.set_ipaddr(ip_addr) |
| |
| |
| def restore_interface(self): |
| if self.netif: |
| self.netif.restore() |
| |
| |
| def client(self, server_ip, test, test_time, num_streams, |
| test_specific_args, cpu_affinity): |
| args = '-H %s -t %s -l %d' % (server_ip, test, test_time) |
| |
| if os.path.exists('/usr/bin/mpstat'): |
| mpstat = '/usr/bin/mpstat' |
| else: |
| mpstat = os.path.join(self.autodir + '/deps/sysstat/src/mpstat') |
| |
| if self.wait_time: |
| args += ' -s %d ' % self.wait_time |
| |
| # Append the test specific arguments. |
| if test_specific_args: |
| args += ' ' + test_specific_args |
| |
| cmd = '%s %s' % (self.client_prog, args) |
| |
| if cpu_affinity: |
| cmd = 'taskset %s %s' % (cpu_affinity, cmd) |
| |
| try: |
| cmds = [] |
| |
| # Get 5 mpstat samples. Since tests with large number of streams |
| # take a long time to start up all the streams, we'll toss out the |
| # first and last sample when recording results |
| interval = max(1, test_time / 5) |
| cmds.append('sleep %d && %s -P ALL %s 5' % (self.wait_time, mpstat, |
| interval)) |
| |
| # Add the netperf commands |
| for i in xrange(num_streams): |
| cmds.append(cmd) |
| if self.bidi and test == 'TCP_STREAM': |
| cmds.append(cmd.replace('TCP_STREAM', 'TCP_MAERTS')) |
| |
| t0 = time.time() |
| # Launch all commands in parallel |
| out = utils.run_parallel(cmds, timeout=test_time + 500, |
| ignore_status=True) |
| t1 = time.time() |
| |
| self.results.append(out) |
| self.actual_times.append(t1 - t0 - self.wait_time) |
| # Log test output |
| logging.info(out) |
| |
| except error.CmdError, e: |
| """ Catch errors due to timeout, but raise others |
| The actual error string is: |
| "Command did not complete within %d seconds" |
| called in function join_bg_job in the file common_lib/utils.py |
| |
| Looking for 'within' is probably not the best way to do this but |
| works for now""" |
| |
| if ('within' in e.additional_text |
| or 'non-zero' in e.additional_text): |
| logging.debug(e.additional_text) |
| self.results.append(None) |
| self.actual_times.append(1) |
| else: |
| raise |
| |
| |
| def postprocess(self): |
| # if profilers are enabled, the test gets runs twice |
| if (len(self.stream_list) != len(self.results) and |
| 2*len(self.stream_list) != len(self.results)): |
| raise error.TestError('Mismatched number of results') |
| |
| function = None |
| keys = None |
| |
| # Each of the functions return tuples in which the keys define |
| # what that item in the tuple represents |
| if self.test in ['TCP_STREAM', 'TCP_MAERTS', 'TCP_SENDFILE']: |
| function = self.process_tcp_stream |
| keys = ('Throughput',) |
| elif self.test == 'UDP_STREAM': |
| function = self.process_udp_stream |
| keys = ('Throughput', 'Errors') |
| elif self.test in ['TCP_RR', 'TCP_CRR', 'UDP_RR']: |
| function = self.process_request_response |
| keys = ('Transfer_Rate',) |
| else: |
| raise error.TestError('Unhandled test') |
| |
| for i, streams in enumerate(self.stream_list): |
| attr = {'stream_count':streams} |
| keyval = {} |
| temp_vals = [] |
| |
| # Short circuit to handle errors due to client timeouts |
| if not self.results[i]: |
| self.write_iteration_keyval(attr, keyval) |
| continue |
| |
| # Collect output of netperf sessions |
| failed_streams_count = 0 |
| for result in self.results[i][NETPERF_IX:]: |
| if result.exit_status: |
| failed_streams_count += 1 |
| else: |
| temp_vals.append(function(result.stdout)) |
| |
| keyval['Failed_streams_count'] = failed_streams_count |
| |
| # Process mpstat output |
| mpstat_out = self.results[i][MPSTAT_IX].stdout |
| cpu_stats = self.network_utils.process_mpstat(mpstat_out, 5) |
| keyval['CPU_C'] = 100 - cpu_stats['idle'] |
| keyval['CPU_C_SYS'] = cpu_stats['sys'] |
| keyval['CPU_C_HI'] = cpu_stats['irq'] |
| keyval['CPU_C_SI'] = cpu_stats['soft'] |
| keyval['INTRS_C'] = cpu_stats['intr/s'] |
| |
| actual_time = self.actual_times[i] |
| keyval['actual_time'] = actual_time |
| logging.info('actual_time: %f', actual_time) |
| |
| # Compute the sum of elements returned from function which |
| # represent the string contained in keys |
| for j, key in enumerate(keys): |
| vals = [x[j] for x in temp_vals] |
| # scale result by the actual time taken |
| keyval[key] = sum(vals) |
| |
| # record 'Efficiency' as perf/CPU |
| if keyval['CPU_C'] != 0: |
| keyval['Efficieny_C'] = keyval[keys[0]]/keyval['CPU_C'] |
| else: |
| keyval['Efficieny_C'] = keyval[keys[0]] |
| |
| self.write_iteration_keyval(attr, keyval) |
| |
| |
| def process_tcp_stream(self, output): |
| """Parses the following (works for both TCP_STREAM, TCP_MAERTS and |
| TCP_SENDFILE) and returns a singleton containing throughput. |
| |
| TCP STREAM TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET to foo.bar.com \ |
| (10.10.10.3) port 0 AF_INET |
| Recv Send Send |
| Socket Socket Message Elapsed |
| Size Size Size Time Throughput |
| bytes bytes bytes secs. 10^6bits/sec |
| |
| 87380 16384 16384 2.00 941.28 |
| """ |
| |
| return float(output.splitlines()[6].split()[4]), |
| |
| |
| def process_udp_stream(self, output): |
| """Parses the following and returns a touple containing throughput |
| and the number of errors. |
| |
| UDP UNIDIRECTIONAL SEND TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET \ |
| to foo.bar.com (10.10.10.3) port 0 AF_INET |
| Socket Message Elapsed Messages |
| Size Size Time Okay Errors Throughput |
| bytes bytes secs # # 10^6bits/sec |
| |
| 129024 65507 2.00 3673 0 961.87 |
| 131072 2.00 3673 961.87 |
| """ |
| |
| line_tokens = output.splitlines()[5].split() |
| return float(line_tokens[5]), int(line_tokens[4]) |
| |
| |
| def process_request_response(self, output): |
| """Parses the following which works for both rr (TCP and UDP) and crr |
| tests and returns a singleton containing transfer rate. |
| |
| TCP REQUEST/RESPONSE TEST from 0.0.0.0 (0.0.0.0) port 0 AF_INET \ |
| to foo.bar.com (10.10.10.3) port 0 AF_INET |
| Local /Remote |
| Socket Size Request Resp. Elapsed Trans. |
| Send Recv Size Size Time Rate |
| bytes Bytes bytes bytes secs. per sec |
| |
| 16384 87380 1 1 2.00 14118.53 |
| 16384 87380 |
| """ |
| |
| return float(output.splitlines()[6].split()[5]), |
| |
| |
| def ping(self, ip, timeout): |
| curr_time = time.time() |
| end_time = curr_time + timeout |
| while curr_time < end_time: |
| if not os.system('ping -c 1 ' + ip): |
| # Ping succeeded |
| return |
| # Ping failed. Lets sleep a bit and try again. |
| time.sleep(5) |
| curr_time = time.time() |
| |
| return |
