I just bought 2 nodemcu 0.9 boards and tested then with <a href="http://www.nodemcu.com/index_en.html" rel="nofollow">http://www.nodemcu.com/index_en.html</a> and <a href="https://github.com/esp8266/Arduino" rel="nofollow">https://github.com/esp8266/Arduino</a> and both of then have problems when tested with the board as webserver (panic/reset and memory leaks/freeze).<p>The ESPWebFramework was the only one so far that works and stay alive with the apache benchamrk tool:<p>ab -n 1000 -c 20 <a href="http://192.168.4.1/confwifi" rel="nofollow">http://192.168.4.1/confwifi</a><p>This is ApacheBench, Version 2.3 <$Revision: 1528965 $><p>Copyright 1996 Adam Twiss, Zeus Technology Ltd, <a href="http://www.zeustech.net/" rel="nofollow">http://www.zeustech.net/</a><p>Licensed to The Apache Software Foundation, <a href="http://www.apache.org/" rel="nofollow">http://www.apache.org/</a><p>Benchmarking 192.168.4.1 (be patient)<p>Completed 100 requests<p>Completed 200 requests<p>Completed 300 requests<p>Completed 400 requests<p>Completed 500 requests<p>Completed 600 requests<p>Completed 700 requests<p>Completed 800 requests<p>Completed 900 requests<p>Completed 1000 requests<p>Finished 1000 requests<p>Server Software:<p>Server Hostname: 192.168.4.1<p>Server Port: 80<p>Document Path: /confwifi<p>Document Length: 3770 bytes<p>Concurrency Level: 20<p>Time taken for tests: 44.099 seconds<p>Complete requests: 1000<p>Failed requests: 0<p>Total transferred: 3855000 bytes<p>HTML transferred: 3770000 bytes<p>Requests per second: 22.68 [#/sec] (mean)<p>Time per request: 881.980 [ms] (mean)<p>Time per request: 44.099 [ms] (mean, across all
concurrent requests)<p>Transfer rate: 85.37 [Kbytes/sec] received<p>Connection Times (ms)
min mean[+/-sd] median max<p>Connect: 1 160 1296.8 3 31044<p>Processing: 49 226 145.4 216 2104<p>Waiting: 13 165 121.4 159 2097<p>Total: 51 385 1321.4 222 31876<p>Percentage of the requests served within a certain time (ms)<p><pre><code> 50% 222
66% 240
75% 251
80% 259
90% 284
95% 1211
98% 2107
99% 3235
100% 31876 (longest request)</code></pre>