Hey manuel. I made the test. Performance still decreases. I waited one minute between tests.
Here is test history. It started 318 request/second. And decreased to 103. And It was still decreasing but I stopped the test.
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 921.29ms 188.11ms 1.87s 85.78%
Req/Sec 334.15 121.93 696.00 67.48%
9536 requests in 30.05s, 179.25MB read
Requests/sec: 317.34
Transfer/sec: 5.97MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 908.23ms 154.12ms 1.46s 77.69%
Req/Sec 336.41 134.10 0.87k 72.73%
9606 requests in 30.06s, 180.56MB read
Requests/sec: 319.53
Transfer/sec: 6.01MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 918.89ms 155.10ms 1.75s 75.65%
Req/Sec 331.93 134.94 848.00 70.83%
9532 requests in 30.06s, 179.17MB read
Requests/sec: 317.11
Transfer/sec: 5.96MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 928.40ms 151.50ms 1.58s 75.08%
Req/Sec 328.55 115.63 800.00 69.90%
9472 requests in 30.05s, 178.04MB read
Requests/sec: 315.17
Transfer/sec: 5.92MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 941.49ms 146.27ms 1.51s 74.10%
Req/Sec 323.12 111.22 828.00 73.61%
9292 requests in 30.04s, 174.66MB read
Requests/sec: 309.27
Transfer/sec: 5.81MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 947.33ms 143.14ms 1.52s 72.83%
Req/Sec 321.92 93.10 630.00 72.22%
9247 requests in 30.06s, 173.82MB read
Requests/sec: 307.66
Transfer/sec: 5.78MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 968.04ms 160.94ms 1.96s 74.12%
Req/Sec 315.72 100.05 770.00 71.33%
9002 requests in 30.05s, 169.21MB read
Socket errors: connect 0, read 0, write 0, timeout 3
Requests/sec: 299.56
Transfer/sec: 5.63MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 983.28ms 149.79ms 1.62s 69.66%
Req/Sec 308.81 105.17 787.00 71.63%
8906 requests in 30.04s, 167.41MB read
Requests/sec: 296.46
Transfer/sec: 5.57MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.01s 156.19ms 1.87s 65.25%
Req/Sec 299.80 106.03 707.00 71.97%
8639 requests in 30.05s, 162.39MB read
Requests/sec: 287.46
Transfer/sec: 5.40MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.02s 167.85ms 1.76s 66.68%
Req/Sec 297.29 113.59 750.00 70.73%
8520 requests in 30.05s, 160.15MB read
Requests/sec: 283.51
Transfer/sec: 5.33MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.06s 173.42ms 1.99s 65.74%
Req/Sec 287.77 103.26 0.88k 72.38%
8230 requests in 30.05s, 154.70MB read
Socket errors: connect 0, read 0, write 0, timeout 5
Requests/sec: 273.86
Transfer/sec: 5.15MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.06s 175.03ms 1.94s 65.03%
Req/Sec 287.26 102.01 700.00 68.64%
8221 requests in 30.07s, 154.53MB read
Requests/sec: 273.43
Transfer/sec: 5.14MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.12s 190.55ms 1.99s 68.82%
Req/Sec 271.80 102.13 828.00 76.57%
7764 requests in 30.06s, 145.95MB read
Socket errors: connect 0, read 0, write 0, timeout 10
Requests/sec: 258.33
Transfer/sec: 4.86MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.14s 230.84ms 2.00s 66.12%
Req/Sec 266.72 86.49 700.00 76.66%
7637 requests in 30.06s, 143.55MB read
Socket errors: connect 0, read 0, write 0, timeout 7
Requests/sec: 254.06
Transfer/sec: 4.78MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.18s 245.31ms 2.00s 67.80%
Req/Sec 255.79 86.33 545.00 70.77%
7250 requests in 30.07s, 136.28MB read
Socket errors: connect 0, read 0, write 0, timeout 98
Requests/sec: 241.14
Transfer/sec: 4.53MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.20s 251.28ms 2.00s 68.92%
Req/Sec 250.43 87.33 700.00 69.79%
7206 requests in 30.06s, 135.45MB read
Socket errors: connect 0, read 0, write 0, timeout 114
Requests/sec: 239.72
Transfer/sec: 4.51MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.22s 234.71ms 2.00s 70.41%
Req/Sec 247.76 98.26 818.00 77.70%
7095 requests in 30.06s, 133.36MB read
Socket errors: connect 0, read 0, write 0, timeout 78
Requests/sec: 236.07
Transfer/sec: 4.44MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.30s 264.83ms 2.00s 71.78%
Req/Sec 219.64 77.18 480.00 65.62%
6308 requests in 30.05s, 118.57MB read
Socket errors: connect 0, read 0, write 0, timeout 433
Requests/sec: 209.92
Transfer/sec: 3.95MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.28s 273.28ms 2.00s 68.97%
Req/Sec 224.68 86.50 610.00 72.47%
6430 requests in 30.05s, 120.86MB read
Socket errors: connect 0, read 0, write 0, timeout 423
Requests/sec: 213.98
Transfer/sec: 4.02MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.28s 297.44ms 2.00s 71.19%
Req/Sec 216.58 76.46 505.00 70.49%
6223 requests in 30.07s, 116.97MB read
Socket errors: connect 0, read 0, write 0, timeout 725
Requests/sec: 206.95
Transfer/sec: 3.89MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.28s 268.14ms 2.00s 71.59%
Req/Sec 212.54 70.55 690.00 76.12%
6133 requests in 30.04s, 115.28MB read
Socket errors: connect 0, read 0, write 0, timeout 769
Requests/sec: 204.13
Transfer/sec: 3.84MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.28s 248.52ms 2.00s 75.28%
Req/Sec 205.85 73.77 770.00 77.08%
5924 requests in 30.06s, 111.35MB read
Socket errors: connect 0, read 0, write 0, timeout 875
Requests/sec: 197.08
Transfer/sec: 3.70MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.31s 264.71ms 2.00s 72.88%
Req/Sec 201.56 70.79 550.00 74.56%
5790 requests in 30.04s, 108.83MB read
Socket errors: connect 0, read 0, write 0, timeout 872
Requests/sec: 192.73
Transfer/sec: 3.62MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.35s 281.51ms 2.00s 73.23%
Req/Sec 175.89 61.97 646.00 79.51%
5059 requests in 30.05s, 95.09MB read
Socket errors: connect 0, read 0, write 0, timeout 1380
Requests/sec: 168.35
Transfer/sec: 3.16MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.36s 261.39ms 2.00s 70.81%
Req/Sec 184.69 64.38 440.00 69.93%
5271 requests in 30.05s, 99.08MB read
Socket errors: connect 0, read 0, write 0, timeout 1245
Requests/sec: 175.38
Transfer/sec: 3.30MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.37s 296.79ms 2.00s 73.31%
Req/Sec 169.93 64.26 626.00 78.32%
4853 requests in 30.04s, 91.22MB read
Socket errors: connect 0, read 0, write 0, timeout 1661
Requests/sec: 161.55
Transfer/sec: 3.04MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.34s 247.45ms 2.00s 74.87%
Req/Sec 163.31 54.27 353.00 70.07%
4626 requests in 30.04s, 86.95MB read
Socket errors: connect 0, read 0, write 0, timeout 1514
Requests/sec: 154.01
Transfer/sec: 2.89MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.38s 290.60ms 2.00s 71.98%
Req/Sec 158.62 68.69 520.00 79.72%
4529 requests in 30.04s, 85.13MB read
Socket errors: connect 0, read 0, write 0, timeout 1595
Requests/sec: 150.75
Transfer/sec: 2.83MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.37s 275.42ms 2.00s 75.76%
Req/Sec 155.28 51.62 363.00 70.24%
4484 requests in 30.05s, 84.29MB read
Socket errors: connect 0, read 0, write 0, timeout 1893
Requests/sec: 149.20
Transfer/sec: 2.80MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.40s 278.83ms 2.00s 71.16%
Req/Sec 154.91 51.04 360.00 73.43%
4423 requests in 30.05s, 83.14MB read
Socket errors: connect 0, read 0, write 0, timeout 1500
Requests/sec: 147.17
Transfer/sec: 2.77MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.38s 276.97ms 2.00s 76.20%
Req/Sec 151.41 53.37 454.00 79.24%
4378 requests in 30.05s, 82.29MB read
Socket errors: connect 0, read 0, write 0, timeout 1954
Requests/sec: 145.68
Transfer/sec: 2.74MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.36s 246.76ms 2.00s 81.20%
Req/Sec 147.93 58.99 480.00 82.29%
4251 requests in 30.05s, 79.91MB read
Socket errors: connect 0, read 0, write 0, timeout 2044
Requests/sec: 141.45
Transfer/sec: 2.66MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.35s 220.06ms 2.00s 80.37%
Req/Sec 142.69 52.70 393.00 78.05%
4101 requests in 30.03s, 77.10MB read
Socket errors: connect 0, read 0, write 0, timeout 1854
Requests/sec: 136.56
Transfer/sec: 2.57MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.41s 244.83ms 2.00s 75.15%
Req/Sec 139.88 60.57 545.00 81.34%
3996 requests in 30.06s, 75.11MB read
Socket errors: connect 0, read 0, write 0, timeout 1763
Requests/sec: 132.93
Transfer/sec: 2.50MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.36s 224.82ms 2.00s 81.04%
Req/Sec 140.15 54.55 434.00 76.84%
4011 requests in 30.03s, 75.39MB read
Socket errors: connect 0, read 0, write 0, timeout 1912
Requests/sec: 133.55
Transfer/sec: 2.51MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.39s 197.84ms 2.00s 74.59%
Req/Sec 141.83 71.15 545.00 78.87%
4031 requests in 30.06s, 75.79MB read
Socket errors: connect 0, read 0, write 0, timeout 1831
Requests/sec: 134.11
Transfer/sec: 2.52MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.38s 200.00ms 2.00s 77.80%
Req/Sec 131.08 46.56 360.00 76.47%
3787 requests in 30.05s, 71.20MB read
Socket errors: connect 0, read 0, write 0, timeout 1895
Requests/sec: 126.03
Transfer/sec: 2.37MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.41s 185.00ms 2.00s 73.20%
Req/Sec 133.85 62.00 474.00 83.69%
3768 requests in 30.06s, 70.83MB read
Socket errors: connect 0, read 0, write 0, timeout 1820
Requests/sec: 125.37
Transfer/sec: 2.36MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.43s 217.95ms 2.00s 72.34%
Req/Sec 132.23 61.63 520.00 76.76%
3751 requests in 30.05s, 70.51MB read
Socket errors: connect 0, read 0, write 0, timeout 1806
Requests/sec: 124.84
Transfer/sec: 2.35MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.44s 208.47ms 1.99s 70.79%
Req/Sec 127.17 53.19 363.00 73.78%
3639 requests in 30.06s, 68.40MB read
Socket errors: connect 0, read 0, write 0, timeout 1934
Requests/sec: 121.06
Transfer/sec: 2.28MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.46s 216.67ms 2.00s 68.67%
Req/Sec 131.14 58.20 380.00 74.47%
3701 requests in 30.05s, 69.57MB read
Socket errors: connect 0, read 0, write 0, timeout 1818
Requests/sec: 123.16
Transfer/sec: 2.32MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.46s 191.29ms 2.00s 70.83%
Req/Sec 122.80 47.96 313.00 75.61%
3518 requests in 30.05s, 66.13MB read
Socket errors: connect 0, read 0, write 0, timeout 1958
Requests/sec: 117.07
Transfer/sec: 2.20MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.47s 181.54ms 2.00s 73.70%
Req/Sec 123.67 63.33 410.00 73.31%
3473 requests in 30.07s, 65.28MB read
Socket errors: connect 0, read 0, write 0, timeout 1701
Requests/sec: 115.48
Transfer/sec: 2.17MB
-----------------------------------------------------------------------
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 1.52s 180.95ms 2.00s 67.52%
Req/Sec 111.96 51.35 330.00 75.99%
3120 requests in 30.05s, 58.65MB read
Socket errors: connect 0, read 0, write 0, timeout 1950
Requests/sec: 103.81
Transfer/sec: 1.95MB
Edit: I restarted all parse servers. And Result increased to 317 again:
1 threads and 300 connections
Thread Stats Avg Stdev Max +/- Stdev
Latency 918.65ms 154.74ms 1.66s 84.86%
Req/Sec 331.27 100.33 580.00 67.71%
9531 requests in 30.05s, 179.15MB read
Requests/sec: 317.17
Transfer/sec: 5.96MB