ubuntu@ip-172-31-19-211:~$ uname -a Linux ip-172-31-19-211 4.2.0-23-generic #28-Ubuntu SMP Sun Dec 27 17:47:31 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux ubuntu@ip-172-31-19-211:~$ free -h total used free shared buffers cached Mem: 991M 253M 738M 17M 13M 116M -/+ buffers/cache: 123M 867M Swap: 4.0G 0B 4.0G ubuntu@ip-172-31-19-211:~$ ps -C java,kswapd0 PID TTY TIME CMD 33 ? 00:00:00 kswapd0 ubuntu@ip-172-31-19-211:~$ sudo systemctl start jira ubuntu@ip-172-31-19-211:~$ vmstat 5 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 2 1 0 570628 14000 170316 0 0 776 11 85 223 2 2 87 1 7 1 1 0 440428 19252 223764 0 0 11739 13 1809 4152 73 6 0 20 1 3 0 0 367620 20252 255244 0 0 6483 2 1137 2892 95 5 0 0 0 2 0 0 338044 20384 261332 0 0 712 10 332 1143 98 2 0 1 0 2 0 0 288628 22456 266028 0 0 1321 87 449 2056 93 4 0 1 2 2 0 0 242284 22480 284664 0 0 2428 66 352 2253 97 2 0 1 0 2 0 0 156464 22500 330880 0 0 7279 442 486 1890 98 2 0 0 0 8 1 0 85812 22512 368460 0 0 4712 123 512 1882 97 3 0 0 0 3 0 0 35488 22532 392084 0 0 2830 197 442 1763 98 2 0 0 0 8 2 0 104304 22540 301604 0 0 3834 8097 509 1670 98 2 0 0 0 8 2 0 13964 22552 321840 0 0 4056 406 553 1483 98 2 0 0 0 10 0 76 15172 18452 261672 0 15 1604 24 407 1227 91 9 0 0 0 6 0 1220 30540 18364 228608 0 229 3268 229 422 1021 47 53 0 0 0 6 1 2576 15320 18180 221656 23 275 4842 282 436 1099 47 53 0 0 0 4 0 18752 15516 15876 205896 10 3235 1969 3241 378 742 48 52 0 0 0 4 0 19272 21924 14456 189424 0 104 821 128 324 692 48 52 0 0 0 3 0 19260 18488 14832 187964 1 4 1066 2509 359 598 48 51 0 0 1 3 0 19252 17772 14840 179112 2 0 625 6 301 599 48 52 0 0 0 3 0 20084 26404 13100 168112 14 172 918 238 348 724 48 52 0 0 0 4 1 20280 19304 13520 163544 14 44 1501 98 395 962 47 53 0 0 0 5 1 20752 18936 12088 146676 11 96 572 150 338 942 47 53 0 0 0 5 0 22236 36256 4864 135444 3 297 975 426 374 971 47 53 0 0 0 5 0 22464 22980 7348 137584 6 51 5915 131 650 1562 46 54 0 0 0 3 0 23552 20592 10568 127824 62 280 17686 309 1397 2958 38 62 0 0 0 1 1 37396 20008 10916 132624 0 2769 31738 2772 2139 4379 27 73 0 0 0 1 1 37736 22516 10376 120704 47 91 14082 92 948 1650 7 93 0 0 0 1 0 37504 22548 10384 120716 26 0 26 4 281 101 0 100 0 0 0 1 0 37504 22564 10384 120716 0 0 0 3 277 94 1 99 0 0 0 1 0 37500 19500 10732 123548 2 0 666 2 304 126 0 97 0 0 3 1 0 37500 19500 10732 123548 0 0 0 32 278 94 0 100 0 0 0 1 0 37500 19516 10868 123548 0 0 25 34 285 84 0 100 0 0 0 1 0 37500 19516 10876 123548 0 0 0 2 277 90 0 100 0 0 0 1 0 37500 19516 10876 123548 0 0 0 0 276 86 0 100 0 0 0 1 0 37500 19516 10876 123548 0 0 0 0 277 89 0 100 0 0 0 1 0 37500 19076 11152 123548 0 0 82 6 292 105 0 100 0 0 0 1 0 37500 19200 11152 123548 0 0 0 0 277 92 0 100 0 0 0 1 0 37500 19200 11152 123548 0 0 0 6 278 85 0 100 0 0 0 1 0 37252 19200 11152 123552 18 0 18 10 283 99 0 100 0 0 0 1 0 37252 19720 11156 123548 0 0 0 1 277 87 0 100 0 0 0 1 0 37252 19596 11164 123548 0 0 0 2 277 87 0 100 0 0 0 1 0 37236 18836 11388 123808 3 0 70 66 299 149 0 98 0 0 2 1 0 37236 18836 11388 123792 0 0 0 0 276 94 0 100 0 0 0 1 0 37236 18852 11396 123792 0 0 0 3 277 84 0 100 0 0 0 1 0 37232 18852 11396 123796 0 0 0 0 277 90 0 100 0 0 0 1 0 37240 17488 11388 125080 0 2 517 2 281 96 0 100 0 0 0 1 0 37240 17488 11388 125080 0 0 0 12 278 90 0 100 0 0 0 ^C ubuntu@ip-172-31-19-211:~$ ps -C java,kswapd0 PID TTY TIME CMD 33 ? 00:02:19 kswapd0 1136 ? 00:01:22 java ubuntu@ip-172-31-19-211:~$ sudo su - root@ip-172-31-19-211:~# echo 1 > /proc/sys/vm/drop_caches root@ip-172-31-19-211:~# vmstat 5 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 42720 100080 1328 53008 3 91 1766 228 286 559 18 38 40 1 3 0 0 42720 99964 1472 52996 0 0 26 6 48 86 0 0 100 0 0 0 0 42720 99964 1480 52996 0 0 0 3 39 85 0 0 100 0 0 0 0 42720 99964 1480 52996 0 0 0 0 39 83 0 0 100 0 0 0 0 42720 99840 1480 52996 0 0 0 0 39 86 0 0 100 0 0 2 0 42652 81428 4640 64004 90 0 2921 0 374 614 20 0 77 3 0 <----- Opening front page of application 4 0 42024 47124 5976 74296 333 0 2445 14 558 1679 95 2 0 2 0 4 0 57892 21116 5960 51212 6 3176 397 3484 408 938 83 17 0 0 0 1 0 57900 19320 5984 51384 3 2 50 21 289 241 10 90 0 0 0 1 0 57756 19320 5996 51700 64 0 128 6 291 122 0 100 0 0 0 1 0 57756 19320 6004 51700 0 0 0 2 277 86 0 100 0 0 0 1 0 57780 16744 6164 54948 26 5 859 5 323 139 0 99 0 0 1 1 0 57776 16744 6172 54964 0 0 0 2 276 90 0 100 0 0 0 root@ip-172-31-19-211:~# logout ubuntu@ip-172-31-19-211:~$ sudo systemctl stop jira vmstat 5 ubuntu@ip-172-31-19-211:~$ vmstat 5 procs -----------memory---------- ---swap-- -----io---- -system-- ------cpu----- r b swpd free buff cache si so bi bo in cs us sy id wa st 0 0 54768 854016 7152 74064 25 142 1556 255 273 523 17 36 43 0 3 0 0 54768 854044 7152 74084 0 0 0 0 10 12 0 0 100 0 0 0 0 54768 853524 7296 74228 0 0 56 12 20 28 0 0 100 0 0 0 0 54768 853524 7304 74228 0 0 0 71 20 30 0 0 100 0 0 0 0 54768 853524 7304 74228 0 0 0 0 8 11 0 0 100 0 0