相同并发情况下多个slave比一个slave测出来的tps低很多 about boomer HOT 14 CLOSED

在压测代码和接口代码没问题的情况下，不应存在这种情况。目前提供的信息不足以定位问题。

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刚才又试了下，
两个slave的情况下，其中一个slave和master放在同一台服务器，另外一个slave在一台机器，此时tps:60-70
如果master在一台独立服务器上，另外两个slave分别放在另外两台服务器上，此时tps:120-130

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如果一个slave情况下，slave和master放在同一台服务器，此时tps：120-130.
代码应该没问题，方便的话，您也可以试一下上述场景是否存在类似问题

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你看看是不是两个 slave 都收到了压测指令。如果下发了 10 个并发，应该每个 slave 都启动 5 个 goroutine。

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都收到了压测指令
A slave:
2018/11/27 15:53:35 Boomer is built with gomq support.
2018/11/27 15:53:35 Boomer is connected to master(192.168.110.28:5557|5558) press Ctrl+c to quit.
2018/11/27 15:54:18 Hatching and swarming 5 clients at the rate 5 clients/s...

B slave（master也在这台机器）:
2018/11/27 15:44:33 Boomer is built with gomq support.
2018/11/27 15:44:33 Boomer is connected to master(192.168.110.28:5557|5558) press Ctrl+c to quit.
2018/11/27 15:44:44 Hatching and swarming 5 clients at the rate 5 clients/s...

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会不会和这个bind-host有关？
locust -f dummy.py --master --master-bind-host=192.168.110.28 --master-bind-port=5557

go run bankprepay.go --master-host=192.168.110.28 --master-port=5557

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关系不大，只要 slave 能连上去就好。可否麻烦在你的环境跑一下，看看是否存在同样的问题。

https://github.com/myzhan/boomer/blob/master/examples/main.go

这个应该是最小例子。

另外，看看是不是有 failure 的情况，因为 failure 不算在 RPS 里面。

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可以改一下 boomer 的代码，在这里 https://github.com/myzhan/boomer/blob/master/runner.go#L352 把 data 打印出来，看看 slave 上报的数据是否正常。

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使用main.go跑也存在同样问题
机器A:
2018/11/27 16:22:07 Boomer is connected to master(192.168.110.28:5557|5558) press Ctrl+c to quit.
data: map[errors:map[] user_count:0 stats:[] stats_total:map[total_content_length:0 num_reqs_per_sec:map[] method: last_request_timestamp:1543306914 start_time:1543306914 num_requests:0 max_response_time:0 name:Total num_failures:0 total_response_time:0 min_response_time:0 response_times:map[]]]
data: map[stats:[] stats_total:map[start_time:1543306917 num_requests:0 num_failures:0 max_response_time:0 response_times:map[] name:Total method: last_request_timestamp:1543306917 num_reqs_per_sec:map[] total_response_time:0 min_response_time:0 total_content_length:0] errors:map[] user_count:0]
data: map[stats:[] stats_total:map[method: num_reqs_per_sec:map[] total_response_time:0 max_response_time:0 min_response_time:0 name:Total last_request_timestamp:1543306920 start_time:1543306920 num_requests:0 num_failures:0 total_content_length:0 response_times:map[]] errors:map[] user_count:0]
data: map[stats_total:map[last_request_timestamp:1543306923 num_requests:0 total_response_time:0 max_response_time:0 min_response_time:0 total_content_length:0 num_reqs_per_sec:map[] name:Total method: start_time:1543306923 num_failures:0 response_times:map[]] errors:map[] user_count:0 stats:[]]
data: map[stats_total:map[min_response_time:0 total_content_length:0 response_times:map[] num_reqs_per_sec:map[] last_request_timestamp:1543306926 start_time:1543306926 num_failures:0 total_response_time:0 max_response_time:0 name:Total method: num_requests:0] errors:map[] user_count:0 stats:[]]
data: map[stats_total:map[method: last_request_timestamp:1543306929 total_response_time:0 max_response_time:0 total_content_length:0 response_times:map[] num_reqs_per_sec:map[] name:Total start_time:1543306929 num_requests:0 num_failures:0 min_response_time:0] errors:map[] user_count:0 stats:[]]
data: map[user_count:0 stats:[] stats_total:map[method: start_time:1543306932 num_requests:0 num_failures:0 total_response_time:0 min_response_time:0 name:Total last_request_timestamp:1543306932 max_response_time:0 total_content_length:0 response_times:map[] num_reqs_per_sec:map[]] errors:map[]]
data: map[stats:[] stats_total:map[num_reqs_per_sec:map[] method: last_request_timestamp:1543306935 num_requests:0 num_failures:0 max_response_time:0 total_content_length:0 response_times:map[] name:Total start_time:1543306935 total_response_time:0 min_response_time:0] errors:map[] user_count:0]
data: map[user_count:0 stats:[] stats_total:map[name:Total last_request_timestamp:1543306938 num_requests:0 num_failures:0 response_times:map[] num_reqs_per_sec:map[] method: start_time:1543306938 total_response_time:0 max_response_time:0 min_response_time:0 total_content_length:0] errors:map[]]
data: map[stats:[] stats_total:map[name:Total method: start_time:1543306941 total_response_time:0 max_response_time:0 total_content_length:0 last_request_timestamp:1543306941 num_requests:0 num_failures:0 min_response_time:0 response_times:map[] num_reqs_per_sec:map[]] errors:map[] user_count:0]
2018/11/27 16:22:25 Hatching and swarming 5 clients at the rate 5 clients/s...
data: map[stats_total:map[num_reqs_per_sec:map[1543306945:14 1543306946:20] method: start_time:1543306945 num_requests:34 num_failures:51 min_response_time:100 total_content_length:340 response_times:map[100:34] name:Total last_request_timestamp:1543306946 total_response_time:3403 max_response_time:101] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[name:bar error:udp error occurences:51 method:udp]] user_count:5 stats:[map[response_times:map[] num_reqs_per_sec:map[] name:bar num_failures:51 max_response_time:0 total_content_length:0 total_response_time:0 min_response_time:0 method:udp last_request_timestamp:1543306946 start_time:1543306946 num_requests:0] map[name:foo method:http last_request_timestamp:1543306946 num_failures:0 max_response_time:101 num_reqs_per_sec:map[1543306945:14 1543306946:20] start_time:1543306946 num_requests:34 total_response_time:3403 min_response_time:100 total_content_length:340 response_times:map[100:34]]]]
data: map[user_count:5 stats:[map[num_failures:90 total_response_time:0 max_response_time:0 min_response_time:0 num_reqs_per_sec:map[] total_content_length:0 response_times:map[] name:bar method:udp last_request_timestamp:1543306947 start_time:1543306947 num_requests:0] map[num_requests:60 total_content_length:600 name:foo start_time:1543306947 num_failures:0 total_response_time:6006 max_response_time:101 min_response_time:100 response_times:map[100:60] num_reqs_per_sec:map[1543306947:20 1543306948:20 1543306949:20] method:http last_request_timestamp:1543306949]] stats_total:map[method: last_request_timestamp:1543306949 total_content_length:600 response_times:map[100:60] num_reqs_per_sec:map[1543306948:20 1543306949:20 1543306947:20] name:Total num_requests:60 num_failures:90 total_response_time:6006 max_response_time:101 min_response_time:100 start_time:1543306947] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:90]]]
data: map[user_count:5 stats:[map[response_times:map[] num_reqs_per_sec:map[] start_time:1543306950 num_requests:0 num_failures:90 total_response_time:0 min_response_time:0 total_content_length:0 name:bar method:udp last_request_timestamp:1543306950 max_response_time:0] map[num_requests:60 total_response_time:6012 max_response_time:101 min_response_time:100 name:foo method:http start_time:1543306950 response_times:map[100:60] num_reqs_per_sec:map[1543306950:20 1543306951:20 1543306952:20] last_request_timestamp:1543306952 num_failures:0 total_content_length:600]] stats_total:map[max_response_time:101 response_times:map[100:60] num_reqs_per_sec:map[1543306950:20 1543306951:20 1543306952:20] last_request_timestamp:1543306952 num_failures:90 total_response_time:6012 num_requests:60 min_response_time:100 total_content_length:600 name:Total method: start_time:1543306950] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[name:bar error:udp error occurences:90 method:udp]]]
data: map[stats:[map[last_request_timestamp:1543306955 start_time:1543306953 num_requests:60 total_response_time:6008 min_response_time:100 response_times:map[100:60] num_reqs_per_sec:map[1543306953:20 1543306954:20 1543306955:20] name:foo method:http num_failures:0 max_response_time:101 total_content_length:600] map[method:udp last_request_timestamp:1543306953 start_time:1543306953 num_requests:0 total_response_time:0 min_response_time:0 name:bar num_failures:90 max_response_time:0 total_content_length:0 response_times:map[] num_reqs_per_sec:map[]]] stats_total:map[num_requests:60 num_failures:90 max_response_time:101 total_content_length:600 num_reqs_per_sec:map[1543306953:20 1543306954:20 1543306955:20] name:Total last_request_timestamp:1543306955 start_time:1543306953 total_response_time:6008 min_response_time:100 response_times:map[100:60] method:] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:90]] user_count:5]
2018/11/27 16:22:37 Recv stop message from master, all the goroutines are stopped
data: map[errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:33]] user_count:5 stats:[map[last_request_timestamp:1543306956 start_time:1543306956 num_failures:33 max_response_time:0 response_times:map[] num_reqs_per_sec:map[] name:bar method:udp num_requests:0 total_response_time:0 min_response_time:0 total_content_length:0] map[max_response_time:101 min_response_time:100 response_times:map[100:22] num_reqs_per_sec:map[1543306956:20 1543306957:2] name:foo num_requests:22 num_failures:0 total_response_time:2205 total_content_length:220 method:http last_request_timestamp:1543306957 start_time:1543306956]] stats_total:map[last_request_timestamp:1543306957 num_requests:22 total_response_time:2205 min_response_time:100 total_content_length:220 method: start_time:1543306956 num_failures:33 max_response_time:101 response_times:map[100:22] num_reqs_per_sec:map[1543306956:20 1543306957:2] name:Total]]
data: map[stats:[] stats_total:map[num_failures:0 max_response_time:0 min_response_time:0 name:Total method: last_request_timestamp:1543306959 start_time:1543306959 num_requests:0 total_content_length:0 num_reqs_per_sec:map[] total_response_time:0 response_times:map[]] errors:map[] user_count:5]

机器B:
data: map[stats:[] stats_total:map[method: last_request_timestamp:1543306368 total_response_time:0 max_response_time:0 response_times:map[] total_content_length:0 num_reqs_per_sec:map[] name:Total start_time:1543306368 num_requests:0 num_failures:0 min_response_time:0] errors:map[] user_count:0]
2018/11/27 16:12:52 Hatching and swarming 5 clients at the rate 5 clients/s...
data: map[user_count:5 stats:[map[name:bar last_request_timestamp:1543306372 start_time:1543306372 total_response_time:0 total_content_length:0 response_times:map[] method:udp num_requests:0 num_failures:48 max_response_time:0 min_response_time:0 num_reqs_per_sec:map[]] map[num_requests:32 max_response_time:101 min_response_time:100 response_times:map[100:32] num_failures:0 total_response_time:3210 total_content_length:320 num_reqs_per_sec:map[1543306372:12 1543306373:20] name:foo method:http last_request_timestamp:1543306373 start_time:1543306372]] stats_total:map[name:Total method: last_request_timestamp:1543306373 start_time:1543306372 response_times:map[100:32] num_reqs_per_sec:map[1543306372:12 1543306373:20] num_requests:32 num_failures:48 total_response_time:3210 max_response_time:101 min_response_time:100 total_content_length:320] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:48]]]
data: map[stats:[map[num_requests:0 total_response_time:0 min_response_time:0 total_content_length:0 num_failures:90 max_response_time:0 response_times:map[] num_reqs_per_sec:map[] name:bar method:udp last_request_timestamp:1543306374 start_time:1543306374] map[name:foo start_time:1543306374 max_response_time:101 min_response_time:100 num_reqs_per_sec:map[1543306374:20 1543306375:20 1543306376:20] method:http last_request_timestamp:1543306376 num_requests:60 num_failures:0 total_response_time:6013 total_content_length:600 response_times:map[100:60]]] stats_total:map[num_failures:90 total_content_length:600 response_times:map[100:60] num_reqs_per_sec:map[1543306374:20 1543306375:20 1543306376:20] method: last_request_timestamp:1543306376 start_time:1543306374 num_requests:60 total_response_time:6013 max_response_time:101 min_response_time:100 name:Total] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:90]] user_count:5]
data: map[stats:[map[method:udp last_request_timestamp:1543306377 total_response_time:0 total_content_length:0 name:bar num_requests:0 num_failures:90 max_response_time:0 min_response_time:0 response_times:map[] num_reqs_per_sec:map[] start_time:1543306377] map[num_requests:60 total_response_time:6019 max_response_time:101 min_response_time:100 total_content_length:600 response_times:map[100:60] num_reqs_per_sec:map[1543306378:20 1543306379:20 1543306377:20] method:http last_request_timestamp:1543306379 start_time:1543306377 num_failures:0 name:foo]] stats_total:map[total_response_time:6019 max_response_time:101 total_content_length:600 num_reqs_per_sec:map[1543306379:20 1543306377:20 1543306378:20] method: last_request_timestamp:1543306379 start_time:1543306377 num_failures:90 name:Total num_requests:60 min_response_time:100 response_times:map[100:60]] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:90]] user_count:5]
data: map[stats:[map[start_time:1543306380 num_requests:0 total_response_time:0 num_reqs_per_sec:map[] name:bar method:udp last_request_timestamp:1543306380 total_content_length:0 response_times:map[] num_failures:90 max_response_time:0 min_response_time:0] map[min_response_time:100 total_content_length:600 name:foo last_request_timestamp:1543306382 start_time:1543306380 total_response_time:6017 max_response_time:101 method:http num_requests:60 num_failures:0 response_times:map[100:60] num_reqs_per_sec:map[1543306382:20 1543306380:20 1543306381:20]]] stats_total:map[response_times:map[100:60] last_request_timestamp:1543306382 start_time:1543306380 num_requests:60 min_response_time:100 max_response_time:101 total_content_length:600 num_reqs_per_sec:map[1543306380:20 1543306381:20 1543306382:20] name:Total method: num_failures:90 total_response_time:6017] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:90]] user_count:5]
2018/11/27 16:13:04 Recv stop message from master, all the goroutines are stopped
data: map[stats_total:map[method: last_request_timestamp:1543306384 max_response_time:101 min_response_time:100 total_content_length:240 num_reqs_per_sec:map[1543306383:20 1543306384:4] name:Total start_time:1543306383 num_requests:24 num_failures:36 total_response_time:2406 response_times:map[100:24]] errors:map[52ebbeaa7f58867461fbcbec253ddd03:map[method:udp name:bar error:udp error occurences:36]] user_count:5 stats:[map[total_content_length:0 num_reqs_per_sec:map[] start_time:1543306383 num_failures:36 max_response_time:0 num_requests:0 total_response_time:0 min_response_time:0 response_times:map[] name:bar method:udp last_request_timestamp:1543306383] map[method:http last_request_timestamp:1543306384 start_time:1543306383 num_requests:24 min_response_time:100 total_content_length:240 response_times:map[100:24] name:foo num_failures:0 total_response_time:2406 max_response_time:101 num_reqs_per_sec:map[1543306383:20 1543306384:4]]]]
data: map[stats_total:map[start_time:1543306386 max_response_time:0 response_times:map[] num_reqs_per_sec:map[] name:Total last_request_timestamp:1543306386 num_failures:0 total_response_time:0 min_response_time:0 total_content_length:0 method: num_requests:0] errors:map[] user_count:5 stats:[]]
data: map[stats:[] stats_total:map[total_content_length:0 response_times:map[] method: last_request_timestamp:1543306389 start_time:1543306389 min_response_time:0 max_response_time:0 num_reqs_per_sec:map[] name:Total num_requests:0 num_failures:0 total_response_time:0] errors:map[] user_count:5]

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你有一台施压机的系统时间不对，其实 slave 是有上报结果的，但是 master 会忽略掉系统时间和自身系统时间差太多的结果。

那个有问题的施压机分了 5 个 goroutine，但是它上报的结果被丢弃了。

其实两种情况，你接口处理的 TPS 都是 120-130 左右。

from boomer.

恩，确实是这个原因

from boomer.

环境因素

from boomer.

环境因素

from boomer.

环境因素

from boomer.