1sockperf(3) sockperf sockperf(3)
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6 sockperf - SockPerf is a tool for network performance measurement
7 written in C++.
8
10 SockPerf is a network testing tool oriented to measure network latency
11 and also spikes of network latency. Tool can create UDP/TCP data
12 streams and measure the throughput and latency of a network that is
13 carrying them. SockPerf allows the user to define different parameters
14 that can be used for testing a network, or alternately for optimizing
15 or tuning a network. Tool provides a client and server functionality,
16 and can measure the throughput and latency between the two end-points,
17 either unidirectionally or bidirectionally. This utility can be used in
18 Linux systems.
19
21 People are often concerned about measuring the maximum data throughput
22 rate of a communications link or network access. A typical method of
23 performing a measurement is to transfer a 'large' file and measure the
24 time taken to do so. The throughput is then calculated by dividing the
25 file size by the time to get the throughput in megabits, kilobits, or
26 bits per second. Unfortunately, the results of such an exercise will
27 result in the goodput which is less than the maximum throughput,
28 leading to people believing that their communications link is not
29 operating correctly. In fact, there are many overheads accounted for in
30 good case in addition to transmission overheads, including latency, TCP
31 Receive Window size and machine limitations, which means the calculated
32 goodput does not reflect the maximum achievable throughput.
33
34 Another important thing of tool capacity is latency measurement.
35 Latency - is the time it takes packet to go from user space program on
36 one machine to user space program on another machine. Being able to
37 quantify latency in terms other than millisecond response time is
38 important when determining the quality of a network. One of available
39 tool that can help administrators do just that is Sockperf.
40
41 SockPerf works as an on-demand client and server test. How this works
42 is that one system runs the Sockperf server over a specified port and
43 another system functions as a client running the Sockperf client. The
44 binaries are the same, and there is an option to have the role of
45 client or server, so the roles can easily be reversed if necessary.
46
48 Sockperf tests UDP/TCP network connection and maintenance following
49 functionality:
50
51 • Measure latency;
52
53 • Measure TX/RX bandwidth;
54
55 • Measure packet loss;
56
57 • Multicast;
58
59 • Multi-threaded;
60
61 features:
62
63 • Measure the RTT of packets in descrete way;
64
65 • Provide full log of packet times;
66
67 • Provide few modes to monitor multiple file descriptors as
68 recvfrom/select/poll/epoll;
69
70 • Improved CPU utilization;
71
72 Initially the tool was developed to demonstrate advantages of
73 Mellanox's Messaging Accelerator (VMA). VMA is a socket API based,
74 dynamically linked, user space Linux library which serves to
75 transparently enhance the performance of Multicast/UDP/TCP networking
76 heavy applications over the InfiniBand and Ethernet network. More
77 interested user can read detail information at http://www.mellanox.com.
78 Actually Sockperf can be used natively, or with VMA acceleration and
79 see the benefit of VMA.
80
81 SockPerf operates by sending packets from the client to the server,
82 which then sends the packets back to the client. This measured round
83 trip time is the route trip time (RTT) between the two machines on a
84 specific network path. The average RTT is calculated by dividing the
85 total number of packets that perform this round trip by some fixed
86 period of time. The average latency for a given one-way path between
87 the two machines is the average RTT divided by two.
88
89 SockPerf can work as server or execute under-load, ping-pong, playback
90 and throughput tests and be a server or a client.
91
92 SockPerf can be launched in single point manner that is name as the
93 first mode and using special formatted feed file named as the second
94 mode.
95
96 Mode One:
97
98 $sockperf server -i 224.18.7.81 -p 5001
99 sockperf: == version #3.5-no.git ==
100 sockperf: [SERVER] listen on:
101 [ 0] IP = 224.18.7.81 PORT = 5001 # UDP
102 sockperf: Warmup stage (sending a few dummy messages)...
103 sockperf: [tid 4701] using recvfrom() to block on socket(s
104
105
106 Mode Two:
107
108 $sockperf server -f conf.file -F e
109 sockperf: == version #3.5-no.git ==
110 sockperf: [SERVER] listen on:
111 [ 0] IP = 5.2.1.3 PORT = 6671 # TCP
112 [ 1] IP = 5.2.1.3 PORT = 6672 # TCP
113 [ 2] IP = 5.2.1.3 PORT = 6673 # TCP
114 [ 3] IP = 5.2.1.3 PORT = 6674 # TCP
115 [ 4] IP = 5.2.1.3 PORT = 6675 # TCP
116 sockperf: Warmup stage (sending a few dummy messages)...
117 sockperf: [tid 4805] using epoll() to block on socket(s)
118
119
120 Every line in feed file should have following format as
121
122 or
123
124 where
125
126 • [U|T] - UDP or TCP protocol;
127
128 • address - Internet Protocol (IP) address or host name (IPv6 addresses
129 must be enclosed in square brackets);
130
131 • port - Port number;
132
133 • mc_src_addr - Optional multicast source IP address or host name.
134
135 3.1 Available options
136 The following table describes Sockperf options, and their possible
137 values:
138
139 -h,-? --help,--usage -Show the help message and exit.
140 --tcp -Use TCP protocol (default UDP).
141 -i --ip -Listen on/send to ip <ip>.
142 -p --port -Listen on/connect to port <port> (default 11111).
143 -f --file -Read list of connections from file (used in pair with -F option).
144 -F --iomux-type -Type of multiple file descriptors handle [s|select|p|poll|e|epoll|r|recvfrom|x|socketxtreme](default epoll).
145 --timeout -Set select/poll/epoll timeout to <msec>, -1 for infinite (default is 10 msec).
146 -a --activity -Measure activity by printing a '.' for the last <N> messages processed.
147 -A --Activity -Measure activity by printing the duration for last <N> messages processed.
148 --tcp-avoid-nodelay -Stop/Start delivering TCP Messages Immediately (Enable/Disable Nagel). Default is Nagel Disabled except in Throughput where the default is Nagel enabled.
149 --tcp-skip-blocking-send
150 -Enables non-blocking send operation (default OFF).
151 --tos -Allows setting tos
152 --mc-rx-if -Set address <ip> of interface on which to receive multicast messages (can be other then route table).
153 --mc-tx-if -Set address <ip> of interface on which to transmit multicast messages (can be other then route table).
154 --mc-loopback-enable -Enables mc loopback (default disabled).
155 --mc-ttl -Limit the lifetime of the message (default 2).
156 --mc-source-filter -Set address <ip, hostname> of multicast messages source which is allowed to receive from.
157 --uc-reuseaddr -Enables unicast reuse address (default disabled).
158 --lls -Turn on LLS via socket option (value = usec to poll).
159 --buffer-size -Set total socket receive/send buffer <size> in bytes (system defined by default).
160 --nonblocked -Open non-blocked sockets.
161 --recv_looping_num -Set Sockperf to loop over recvfrom() until EAGAIN or <N> good received packets, -1 for infinite, must be used with --nonblocked (default 1).
162 --dontwarmup -Don't send warm up messages on start.
163 --pre-warmup-wait -Time to wait before sending warm up messages (seconds).
164 --vmazcopyread -Use VMA's zero copy reads API (See VMA's readme).
165 --daemonize -Run as daemon.
166 --no-rdtsc -Don't use register when taking time; instead use monotonic clock.
167 --load-vma -Load VMA dynamically even when LD_PRELOAD was not used.
168 --rate-limit -use rate limit (packet-pacing), with VMA must be run with VMA_RING_ALLOCATION_LOGIC_TX mode.
169 --set-sock-accl -Set socket acceleration before run (available for some of Mellanox systems)
170 -d --debug -Print extra debug information.
171
172
173 3.2 Server
174 Server options are:
175
176 --threads-num -Run <N> threads on server side (requires '-f' option).
177 --cpu-affinity -Set threads affinity to the given core ids in list format (see: cat /proc/cpuinfo).
178 --vmarxfiltercb -Use VMA's receive path message filter callback API (See VMA's readme).
179 --force-unicast-reply -Force server to reply via unicast.
180 --dont-reply -Server won't reply to the client messages.
181 -m --msg-size -Set maximum message size that the server can receive <size> bytes (default 65507).
182 -g --gap-detection -Enable gap-detection.
183
184
185 3.3 Client
186 Sockperf supports different scenarios to run itself as a client. There
187 are under-load, ping-pong, playback and throughput subcommands to
188 select one of the scenarios.
189
190 • under-load - run sockperf client for latency under load test;
191
192 • ping-pong - run sockperf client for latency test in ping pong mode;
193
194 • playback - run sockperf client for latency test using playback of
195 predefined traffic, based on timeline and message size;
196
197 • throughput - run sockperf client for one way throughput test;
198
199 General client options are:
200
201 --sender-affinity -Set sender thread affinity to the given core ids in list format (see: cat /proc/cpuinfo).
202 --receiver-affinity -Set receiver thread affinity to the given core ids in list format (see: cat /proc/cpuinfo).
203 --full-log -Dump full log of all messages send/receive time to the given file in CSV format.
204 --giga-size -Print sizes in GigaByte.
205 --increase_output_precision
206 -Increase number of digits after decimal point of the throughput output (from 3 to 9).
207 --dummy-send -Use VMA's dummy send API instead of busy wait, must be higher than regular msg rate.
208 optional: set dummy-send rate per second (default 10,000), usage: --dummy-send [<rate>|max]
209 -t --time -Run for <sec> seconds (default 1, max = 36000000).
210 --client_port -Force the client side to bind to a specific port (default = 0).
211 --client_ip -Force the client side to bind to a specific ip address (default = 0).
212 -b --burst -Control the client's number of a messages sent in every burst.
213 --mps -Set number of messages-per-second (default = 10000 - for under-load mode, or max - for ping-pong and throughput modes; for maximum use --mps=max;
214 support --pps for old compatibility).
215 -m --msg-size -Use messages of size <size> bytes (minimum default 14).
216 -r --range -comes with -m <size>, randomly change the messages size in range: <size> +- <N>.
217 --data-integrity -Perform data integrity test
218
219
220 3.4 Tools
221 SockPerf package contains few scripts that allow to generate special
222 formatted file to launch tool in different configurations.
223
224 • filter.awk - can be used for filtering lines from the full log file
225 based on given latency range;
226
227 • gen1.awk - this awk script generates playback files (it is for stable
228 PPS playback file);
229
230 • gen2.awk - this awk script generates playback files using the input
231 for this script is file with lines of the format: startTime;
232 duration; startPPS; endPPS; msgSize (it is for linear increased and
233 decreased PPS playback file);
234
235 create playback file using gen1.awk > pfile
236 generated file:
237 # ==== playback file for sockperf - generated by gen1.awk ====
238 #baseTime=1.000000; PPS=200000; runtime=1.000000; interval=0.000005; NUM_RECORDS=200000
239 # file contains 200000 records
240 1.000005000, 12
241 1.000010000, 12
242 1.000015000, 12
243 1.000020000, 12
244 1.000025000, 12
245 1.000030000, 12
246 1.000035000, 12
247 1.000040000, 12
248 ...
249 1.999950000, 12
250 1.999955000, 12
251 1.999960000, 12
252 1.999965000, 12
253 1.999970000, 12
254 1.999975000, 12
255 1.999980000, 12
256 1.999985000, 12
257 1.999990000, 12
258 1.999995000, 12
259 2.000000000, 12
260 #200000 records were written successfully
261 start server on ipX
262 start client using: ./sockperf ping-pong -i <ip-address> -p <port> --playback=pfile
263
264 3.5 Usage
265 3.5.1 Running Multicast over IPoIB
266 • Configure the routing table to map multicast addresses to the IPoIB
267 interface on both client and server machines, as follows:
268
269 route add -net 224.0.0.0 netmask 240.0.0.0 dev ib0
270
271
272 In this case, ib0 is the IPoIB interface.
273
274 • Run the server as follows:
275
276 $sockperf server -i 224.18.7.81 -p 5001
277 sockperf: == version #3.5-no.git ==
278 sockperf: [SERVER] listen on:
279 [ 0] IP = 224.18.7.81 PORT = 5001 # UDP
280 sockperf: Warmup stage (sending a few dummy messages)...
281 sockperf: [tid 30399] using recvfrom() to block on socket(s)
282
283
284 • Run the client as follows:
285
286 $sockperf ping-pong -i 224.18.7.81 -p 5001 -m 16384 -t 10 --mps=max
287 sockperf: == version #3.5-no.git ==
288 sockperf[CLIENT] send on:sockperf: using recvfrom() to block on socket(s)
289
290 [ 0] IP = 224.18.7.81 PORT = 5001 # UDP
291 sockperf: Warmup stage (sending a few dummy messages)...
292 sockperf: Starting test...
293 sockperf: Test end (interrupted by timer)
294 sockperf: Test ended
295 sockperf: [Total Run] RunTime=10.000 sec; Warm up time=400 msec; SentMessages=240464; ReceivedMessages=240463
296 sockperf: ========= Printing statistics for Server No: 0
297 sockperf: [Valid Duration] RunTime=9.550 sec; SentMessages=229630; ReceivedMessages=229630
298 sockperf: ====> avg-lat= 20.771 (std-dev=5.266)
299 sockperf: # dropped messages = 0; # duplicated messages = 0; # out-of-order messages = 0
300 sockperf: Summary: Latency is 20.771 usec
301 sockperf: Total 229630 observations; each percentile contains 2296.30 observations
302 sockperf: ---> <MAX> observation = 120.108
303 sockperf: ---> percentile 99.999 = 106.349
304 sockperf: ---> percentile 99.990 = 63.772
305 sockperf: ---> percentile 99.900 = 55.940
306 sockperf: ---> percentile 99.000 = 48.619
307 sockperf: ---> percentile 90.000 = 24.295
308 sockperf: ---> percentile 75.000 = 20.358
309 sockperf: ---> percentile 50.000 = 19.279
310 sockperf: ---> percentile 25.000 = 18.641
311 sockperf: ---> <MIN> observation = 16.748
312
313
314 3.5.2 Running TCP over Ethernet
315 • Run the server as follows:
316
317 $sockperf server -i 22.0.0.3 -p 5001 --tcp
318 sockperf: == version #3.5-no.git ==
319 sockperf: [SERVER] listen on:
320 [ 0] IP = 22.0.0.3 PORT = 5001 # TCP
321 sockperf: Warmup stage (sending a few dummy messages)...
322 sockperf: [tid 1567] using recvfrom() to block on socket(s)
323
324
325 • Run the client as follows:
326
327 $sockperf ping-pong -i 22.0.0.3 -p 5001 --tcp -m 64 -t 10 --mps=max
328 sockperf: == version #3.5-no.git ==
329 sockperf[CLIENT] send on:sockperf: using recvfrom() to block on socket(s)
330
331 [ 0] IP = 22.0.0.3 PORT = 5001 # TCP
332 sockperf: Warmup stage (sending a few dummy messages)...
333 sockperf: Starting test...
334 sockperf: Test end (interrupted by timer)
335 sockperf: Test ended
336 sockperf: [Total Run] RunTime=10.000 sec; Warm up time=400 msec; SentMessages=553625; ReceivedMessages=553624
337 sockperf: ========= Printing statistics for Server No: 0
338 sockperf: [Valid Duration] RunTime=9.550 sec; SentMessages=528579; ReceivedMessages=528579
339 sockperf: ====> avg-lat= 9.017 (std-dev=4.171)
340 sockperf: # dropped messages = 0; # duplicated messages = 0; # out-of-order messages = 0
341 sockperf: Summary: Latency is 9.017 usec
342 sockperf: Total 528579 observations; each percentile contains 5285.79 observations
343 sockperf: ---> <MAX> observation = 98.777
344 sockperf: ---> percentile 99.999 = 72.628
345 sockperf: ---> percentile 99.990 = 17.980
346 sockperf: ---> percentile 99.900 = 16.824
347 sockperf: ---> percentile 99.000 = 16.193
348 sockperf: ---> percentile 90.000 = 14.731
349 sockperf: ---> percentile 75.000 = 14.301
350 sockperf: ---> percentile 50.000 = 6.222
351 sockperf: ---> percentile 25.000 = 5.759
352 sockperf: ---> <MIN> observation = 4.629
353
354
355 3.5.3 Running UDP over Ethernet using VMA
356 • More interested user can read detail information about VMA at
357 http://www.mellanox.com.
358
359 • VMA_SPEC=latency is a predefined specification profile for latency.
360
361 • Run the server as follows:
362
363 $VMA_SPEC=latency LD_PRELOAD=libvma.so sockperf server -i 22.0.0.3 -p 5001
364 VMA INFO: ---------------------------------------------------------------------------
365 VMA INFO: VMA_VERSION: 8.6.10-0 Development Snapshot built on Jun 27 2018 16:06:47
366 VMA INFO: Cmd Line: sockperf server -i 22.0.0.3 -p 5001
367 VMA INFO: Current Time: Tue Sep 18 08:49:23 2018
368 VMA INFO: Pid: 2201
369 VMA INFO: OFED Version: MLNX_OFED_LINUX-4.4-1.0.0.0:
370 VMA INFO: Architecture: x86_64
371 VMA INFO: Node: r-aa-apollo03.mtr.labs.mlnx
372 VMA INFO: ---------------------------------------------------------------------------
373 VMA INFO: VMA Spec Latency [VMA_SPEC]
374 VMA INFO: Log Level INFO [VMA_TRACELEVEL]
375 VMA INFO: Ring On Device Memory TX 16384 [VMA_RING_DEV_MEM_TX]
376 VMA INFO: Tx QP WRE 256 [VMA_TX_WRE]
377 VMA INFO: Tx QP WRE Batching 4 [VMA_TX_WRE_BATCHING]
378 VMA INFO: Rx QP WRE 256 [VMA_RX_WRE]
379 VMA INFO: Rx QP WRE Batching 4 [VMA_RX_WRE_BATCHING]
380 VMA INFO: Rx Poll Loops -1 [VMA_RX_POLL]
381 VMA INFO: Rx Prefetch Bytes Before Poll 256 [VMA_RX_PREFETCH_BYTES_BEFORE_POLL]
382 VMA INFO: GRO max streams 0 [VMA_GRO_STREAMS_MAX]
383 VMA INFO: Select Poll (usec) -1 [VMA_SELECT_POLL]
384 VMA INFO: Select Poll OS Force Enabled [VMA_SELECT_POLL_OS_FORCE]
385 VMA INFO: Select Poll OS Ratio 1 [VMA_SELECT_POLL_OS_RATIO]
386 VMA INFO: Select Skip OS 1 [VMA_SELECT_SKIP_OS]
387 VMA INFO: CQ Drain Interval (msec) 100 [VMA_PROGRESS_ENGINE_INTERVAL]
388 VMA INFO: CQ Interrupts Moderation Disabled [VMA_CQ_MODERATION_ENABLE]
389 VMA INFO: CQ AIM Max Count 128 [VMA_CQ_AIM_MAX_COUNT]
390 VMA INFO: CQ Adaptive Moderation Disabled [VMA_CQ_AIM_INTERVAL_MSEC]
391 VMA INFO: CQ Keeps QP Full Disabled [VMA_CQ_KEEP_QP_FULL]
392 VMA INFO: TCP nodelay 1 [VMA_TCP_NODELAY]
393 VMA INFO: Avoid sys-calls on tcp fd Enabled [VMA_AVOID_SYS_CALLS_ON_TCP_FD]
394 VMA INFO: Internal Thread Affinity 0 [VMA_INTERNAL_THREAD_AFFINITY]
395 VMA INFO: Thread mode Single [VMA_THREAD_MODE]
396 VMA INFO: Mem Allocate type 2 (Huge Pages) [VMA_MEM_ALLOC_TYPE]
397 VMA INFO: ---------------------------------------------------------------------------
398 sockperf: == version #3.5-no.git ==
399 sockperf: [SERVER] listen on:
400 [ 0] IP = 22.0.0.3 PORT = 5001 # UDP
401 sockperf: Warmup stage (sending a few dummy messages)...
402 sockperf: [tid 2201] using recvfrom() to block on socket(s)
403
404
405 • Run the client as follows:
406
407 $VMA_SPEC=latency LD_PRELOAD=libvma.so sockperf ping-pong -i 22.0.0.3 -p 5001 -m 64 -t 10 --mps=max
408 VMA INFO: ---------------------------------------------------------------------------
409 VMA INFO: VMA_VERSION: 8.6.10-0 Development Snapshot built on Jun 27 2018 16:06:47
410 VMA INFO: Cmd Line: sockperf ping-pong -i 22.0.0.3 -p 5001 -m 64 -t 10 --mps=max
411 VMA INFO: Current Time: Tue Sep 18 08:47:50 2018
412 VMA INFO: Pid: 20134
413 VMA INFO: OFED Version: MLNX_OFED_LINUX-4.4-1.0.0.0:
414 VMA INFO: Architecture: x86_64
415 VMA INFO: Node: r-aa-apollo04.mtr.labs.mlnx
416 VMA INFO: ---------------------------------------------------------------------------
417 VMA INFO: VMA Spec Latency [VMA_SPEC]
418 VMA INFO: Log Level INFO [VMA_TRACELEVEL]
419 VMA INFO: Ring On Device Memory TX 16384 [VMA_RING_DEV_MEM_TX]
420 VMA INFO: Tx QP WRE 256 [VMA_TX_WRE]
421 VMA INFO: Tx QP WRE Batching 4 [VMA_TX_WRE_BATCHING]
422 VMA INFO: Rx QP WRE 256 [VMA_RX_WRE]
423 VMA INFO: Rx QP WRE Batching 4 [VMA_RX_WRE_BATCHING]
424 VMA INFO: Rx Poll Loops -1 [VMA_RX_POLL]
425 VMA INFO: Rx Prefetch Bytes Before Poll 256 [VMA_RX_PREFETCH_BYTES_BEFORE_POLL]
426 VMA INFO: GRO max streams 0 [VMA_GRO_STREAMS_MAX]
427 VMA INFO: Select Poll (usec) -1 [VMA_SELECT_POLL]
428 VMA INFO: Select Poll OS Force Enabled [VMA_SELECT_POLL_OS_FORCE]
429 VMA INFO: Select Poll OS Ratio 1 [VMA_SELECT_POLL_OS_RATIO]
430 VMA INFO: Select Skip OS 1 [VMA_SELECT_SKIP_OS]
431 VMA INFO: CQ Drain Interval (msec) 100 [VMA_PROGRESS_ENGINE_INTERVAL]
432 VMA INFO: CQ Interrupts Moderation Disabled [VMA_CQ_MODERATION_ENABLE]
433 VMA INFO: CQ AIM Max Count 128 [VMA_CQ_AIM_MAX_COUNT]
434 VMA INFO: CQ Adaptive Moderation Disabled [VMA_CQ_AIM_INTERVAL_MSEC]
435 VMA INFO: CQ Keeps QP Full Disabled [VMA_CQ_KEEP_QP_FULL]
436 VMA INFO: TCP nodelay 1 [VMA_TCP_NODELAY]
437 VMA INFO: Avoid sys-calls on tcp fd Enabled [VMA_AVOID_SYS_CALLS_ON_TCP_FD]
438 VMA INFO: Internal Thread Affinity 0 [VMA_INTERNAL_THREAD_AFFINITY]
439 VMA INFO: Thread mode Single [VMA_THREAD_MODE]
440 VMA INFO: Mem Allocate type 2 (Huge Pages) [VMA_MEM_ALLOC_TYPE]
441 VMA INFO: ---------------------------------------------------------------------------
442 sockperf: == version #3.5-no.git ==
443 sockperf[CLIENT] send on:sockperf: using recvfrom() to block on socket(s)
444
445 [ 0] IP = 22.0.0.3 PORT = 5001 # UDP
446 sockperf: Warmup stage (sending a few dummy messages)...
447 sockperf: Starting test...
448 sockperf: Test end (interrupted by timer)
449 sockperf: Test ended
450 sockperf: [Total Run] RunTime=10.000 sec; Warm up time=400 msec; SentMessages=5166035; ReceivedMessages=5166034
451 sockperf: ========= Printing statistics for Server No: 0
452 sockperf: [Valid Duration] RunTime=9.550 sec; SentMessages=4951987; ReceivedMessages=4951987
453 sockperf: ====> avg-lat= 0.951 (std-dev=0.034)
454 sockperf: # dropped messages = 0; # duplicated messages = 0; # out-of-order messages = 0
455 sockperf: Summary: Latency is 0.951 usec
456 sockperf: Total 4951987 observations; each percentile contains 49519.87 observations
457 sockperf: ---> <MAX> observation = 4.476
458 sockperf: ---> percentile 99.999 = 1.318
459 sockperf: ---> percentile 99.990 = 1.270
460 sockperf: ---> percentile 99.900 = 1.179
461 sockperf: ---> percentile 99.000 = 1.110
462 sockperf: ---> percentile 90.000 = 0.967
463 sockperf: ---> percentile 75.000 = 0.952
464 sockperf: ---> percentile 50.000 = 0.943
465 sockperf: ---> percentile 25.000 = 0.936
466 sockperf: ---> <MIN> observation = 0.895
467
468
470 Read 'copying' file in the root place.
471
473 5.1 Requirements
474 What you will need to compile sockperf on Unix systems
475
476 • perl 5.8+ (used by the automake tools)
477
478 • GNU make tools: automake 1.7+, autoconf 2.57+, m4 1.4+ and libtool
479 1.4+
480
481 • A Compiler, among those tested are:
482
483 • gcc4+ (Ubuntu)
484
485 • gcc4+ (Red Hat)
486
487 5.2 Options to compile
488 5.3 How to install
489 Download sockperf-<version>.tar.gz.
490
491 Uncompress *.tar.gz file in Unix systems in the same folder with the
492 file by runing the following command in the shell:
493
494 tar -zxvf sockperf-<version>.tar.gz
495
496
497 or 2 command:
498
499 gzip -d ./sockperf-<version>.tar.gz
500 tar -xf ./sockperf-<version>.tar
501
502
503 The sockperf package uses the GNU autotools compilation and
504 installation framework.
505
506 These are generic installation instructions.
507
508 The `configure' shell script attempts to guess correct values for
509 various system-dependent variables used during compilation. It uses
510 those values to create a `Makefile' in each directory of the package.
511 It may also create one or more `.h' files containing system-dependent
512 definitions. Finally, it creates a shell script `config.status' that
513 you can run in the future to recreate the current configuration, a file
514 `config.cache' that saves the results of its tests to speed up
515 reconfiguring, and a file `config.log' containing compiler output
516 (useful mainly for debugging `configure').
517
518 If you need to do unusual things to compile the package, please try to
519 figure out how `configure' could check whether to do them, and mail
520 diffs or instructions to the address given in the `README' so they can
521 be considered for the next release. If at some point `config.cache'
522 contains results you don't want to keep, you may remove or edit it.
523
524 The file `configure.in' is used to create `configure' by a program
525 called `autoconf'. You only need `configure.in' if you want to change
526 it or regenerate `configure' using a newer version of `autoconf'.
527
528 The simplest way to compile this package is:
529
530 1. `cd' to the directory containing the package's source code and type
531 `./configure' to configure the package for your system. If you're
532 using `csh' on an old version of System V, you might need to type
533 `sh ./configure' instead to prevent `csh' from trying to execute
534 `configure' itself.
535
536 Running `configure' takes awhile. While running, it prints some
537 messages telling which features it is checking for.
538
539 $ ./configure --prefix=<path to install>
540
541
542 There are several options to ./config (or ./Configure) to customize the
543 build:
544
545 To enable test scripts
546
547 $ ./configure --prefix=<path to install> --enable-test
548
549
550 To enable the documentation
551
552 $ ./configure --prefix=<path to install> --enable-doc
553
554
555 To enable the special scripts
556
557 $ ./configure --prefix=<path to install> --enable-tool
558
559
560 To compile with debug symbols and information:
561
562 $ ./configure --prefix=<path to install> --enable-debug
563
564
565 This will define the _DEBUG variable at compile time.
566
567 Type './configure --help' for a list of all the configure options. Some
568 of the options are generic autoconf options, while the SockPerf
569 specific options are prefixed with 'SOCKPERF:' in the help text.
570
571 2. Type `make' to compile the package.
572
573 $ make
574
575
576 3. Optionally, type `make check' to run any self-tests that come with
577 the package.
578
579 4. Type `make install' to install the programs and any data files and
580 documentation.
581
582 $ make install
583
584
585 5. You can remove the program binaries and object files from the
586 source code directory by typing `make clean'. To also remove the
587 files that `configure' created (so you can compile the package for
588 a different kind of computer), type `make distclean'. There is also
589 a `make maintainer-clean' target, but that is intended mainly for
590 the package's developers. If you use it, you may have to get all
591 sorts of other programs in order to regenerate files that came with
592 the distribution.
593
594Version 3.8-no.git Sat Jan 21 2023 sockperf(3)