Sergey Senozhatsky

zram-perf-test

zram performance testing toolset

LOG_SUFFIX= The suffix the test result file must contain: /tmp/test-fio-zram-$LOG_SUFFIX

MEM_HOGGER_SIZE= Start a memory hogger app in the backgroud (e.g. 3G, 512M)

EXTENDED_LOG= Record an extended stats (mm_stat, buddyinfo, etc.)

ZRAM_SIZE= The size of the zram device (e.g. 3G, 512M)

ZRAM_COMP_ALG= Use the specified compression algorithm (lzo, lz4).

MAX_ITER= The number of fio iterations. On each iteration the test increases the number of fio jobs, files to create, etc.

FIO_LOOPS= The number of loop fio must execute for every test.

FIO_TEST= Specifies the fio template file to be used. E.g. FIO_TEST=compbuf -- will switch to conf/fio-template-compressed-buffer file Otherwise, the conf/fio-template-static-buffer file will be used.

The main difference between those two templates is that 'static-buffer'
sets a `buffer_pattern=0xbadc0ffee' fio option, while `compressed-buffer'
replaces this option with `buffer_compress_percentage=11'. See fio documentation
for more details.

EXAMPLE

== Run the test:

ZRAM_SIZE=1G LOG_SUFFIX=-old-lzo ./zram-fio-test.sh

== Update zram, etc. Run the test:

ZRAM_SIZE=1G LOG_SUFFIX=-crypto-lzo ./zram-fio-test.sh

== Compare the perf logs (can be 2+ files)

./fio-perf-o-meter.sh /tmp/test-fio-zram--old-lzo /tmp/test-fio-zram--crypto-lzo

Processing /tmp/test-fio-zram--old-lzo Processing /tmp/test-fio-zram--crypto-lzo #jobs1
READ: 2432.4MB/s 2481.5MB/s READ: 2026.4MB/s 2033.1MB/s WRITE: 1378.9MB/s 1358.1MB/s WRITE: 1088.1MB/s 1080.1MB/s READ: 434571KB/s 434571KB/s WRITE: 435375KB/s 435375KB/s READ: 404382KB/s 400774KB/s WRITE: 404703KB/s 401093KB/s #jobs2
READ: 7777.3MB/s 7989.7MB/s READ: 6872.5MB/s 6934.6MB/s WRITE: 3388.9MB/s 3400.2MB/s WRITE: 2925.8MB/s 2881.9MB/s READ: 1024.5MB/s 1014.3MB/s WRITE: 1022.6MB/s 1012.9MB/s READ: 986241KB/s 971908KB/s WRITE: 987858KB/s 973501KB/s #jobs3
READ: 13376MB/s 13357MB/s READ: 11578MB/s 11785MB/s WRITE: 4842.9MB/s 4772.7MB/s WRITE: 4187.2MB/s 4136.5MB/s READ: 1451.1MB/s 1447.4MB/s WRITE: 1455.4MB/s 1450.8MB/s READ: 1392.6MB/s 1386.7MB/s WRITE: 1391.8MB/s 1385.1MB/s #jobs4
READ: 20078MB/s 19851MB/s READ: 17356MB/s 17430MB/s WRITE: 6403.4MB/s 6423.5MB/s WRITE: 5636.8MB/s 5634.2MB/s READ: 1996.4MB/s 1985.9MB/s WRITE: 1992.3MB/s 1981.4MB/s READ: 1926.9MB/s 1917.9MB/s WRITE: 1923.1MB/s 1914.1MB/s #jobs5
READ: 19394MB/s 19794MB/s READ: 18199MB/s 18528MB/s WRITE: 6318.4MB/s 6054.4MB/s WRITE: 5607.9MB/s 5571.3MB/s READ: 1941.2MB/s 1956.4MB/s WRITE: 1939.8MB/s 1954.6MB/s READ: 1880.7MB/s 1912.5MB/s WRITE: 1872.2MB/s 1903.8MB/s #jobs6
READ: 21260MB/s 21358MB/s READ: 19650MB/s 19609MB/s WRITE: 6580.6MB/s 6559.5MB/s WRITE: 5963.2MB/s 5718.1MB/s READ: 2031.7MB/s 2012.2MB/s WRITE: 2023.9MB/s 2004.5MB/s READ: 1981.4MB/s 1971.2MB/s WRITE: 1977.5MB/s 1967.4MB/s #jobs7
READ: 21249MB/s 21228MB/s READ: 19783MB/s 19321MB/s WRITE: 6779.3MB/s 6665.9MB/s WRITE: 6145.8MB/s 6052.4MB/s READ: 2054.2MB/s 2089.7MB/s WRITE: 2049.7MB/s 2085.5MB/s READ: 2038.3MB/s 1995.1MB/s WRITE: 2034.5MB/s 1992.3MB/s #jobs8
READ: 20111MB/s 20311MB/s READ: 18576MB/s 18618MB/s WRITE: 7045.9MB/s 7029.8MB/s WRITE: 6298.4MB/s 6309.7MB/s READ: 2129.3MB/s 2137.2MB/s WRITE: 2125.9MB/s 2133.1MB/s READ: 2066.5MB/s 2072.8MB/s WRITE: 2079.3MB/s 2085.7MB/s #jobs9
READ: 19763MB/s 19962MB/s READ: 18432MB/s 18543MB/s WRITE: 6779.8MB/s 6862.3MB/s WRITE: 6243.9MB/s 6282.2MB/s READ: 2123.3MB/s 2134.8MB/s WRITE: 2129.7MB/s 2141.2MB/s READ: 2071.6MB/s 2059.8MB/s WRITE: 2077.1MB/s 2066.2MB/s #jobs10
READ: 19922MB/s 20105MB/s READ: 18800MB/s 18596MB/s WRITE: 7024.1MB/s 6994.6MB/s WRITE: 6498.9MB/s 6446.2MB/s READ: 2146.6MB/s 2138.5MB/s WRITE: 2157.8MB/s 2149.7MB/s READ: 2103.9MB/s 2084.5MB/s WRITE: 2106.7MB/s 2087.2MB/s jobs1 perfstat
stalled-cycles-frontend 21,489,830,802 ( 43.56%) 23,414,672,161 ( 47.21%) stalled-cycles-backend 9,981,282,479 ( 20.23%) 9,869,828,602 ( 19.90%) instructions 57,055,302,552 ( 1.16) 57,142,098,427 ( 1.15) branches 11,352,209,696 ( 728.915) 11,369,877,932 ( 727.296) branch-misses 68,360,727 ( 0.60%) 68,404,447 ( 0.60%) jobs2 perfstat
stalled-cycles-frontend 28,600,769,282 ( 38.25%) 31,643,085,550 ( 42.03%) stalled-cycles-backend 13,827,097,555 ( 18.49%) 13,488,568,072 ( 17.92%) instructions 92,982,247,030 ( 1.24) 93,151,167,916 ( 1.24) branches 18,283,685,883 ( 772.002) 18,322,372,063 ( 768.299) branch-misses 76,944,199 ( 0.42%) 78,690,215 ( 0.43%) jobs3 perfstat
stalled-cycles-frontend 45,107,072,849 ( 44.76%) 45,747,963,107 ( 45.15%) stalled-cycles-backend 16,296,051,170 ( 16.17%) 16,476,301,082 ( 16.26%) instructions 128,845,326,509 ( 1.28) 129,114,406,034 ( 1.27) branches 25,211,232,920 ( 695.345) 25,276,046,319 ( 693.435) branch-misses 95,336,315 ( 0.38%) 97,253,370 ( 0.38%) jobs4 perfstat
stalled-cycles-frontend 47,839,054,311 ( 36.94%) 56,603,176,137 ( 43.57%) stalled-cycles-backend 23,897,774,062 ( 18.45%) 22,466,749,945 ( 17.29%) instructions 165,066,064,332 ( 1.27) 165,375,734,889 ( 1.27) branches 32,220,433,474 ( 690.592) 32,292,082,938 ( 690.024) branch-misses 107,903,162 ( 0.33%) 106,563,208 ( 0.33%) jobs5 perfstat
stalled-cycles-frontend 71,504,477,111 ( 45.48%) 71,878,429,136 ( 45.68%) stalled-cycles-backend 26,541,605,642 ( 16.88%) 26,025,720,137 ( 16.54%) instructions 201,668,245,249 ( 1.28) 202,003,248,684 ( 1.28) branches 39,329,858,417 ( 698.208) 39,387,391,093 ( 697.417) branch-misses 130,620,405 ( 0.33%) 133,851,180 ( 0.34%) jobs6 perfstat
stalled-cycles-frontend 66,130,834,671 ( 36.20%) 80,161,836,716 ( 43.52%) stalled-cycles-backend 32,527,273,707 ( 17.80%) 31,136,902,197 ( 16.90%) instructions 237,544,751,513 ( 1.30) 237,980,152,797 ( 1.29) branches 46,244,135,434 ( 703.898) 46,371,300,070 ( 700.583) branch-misses 129,763,491 ( 0.28%) 124,008,362 ( 0.27%) jobs7 perfstat
stalled-cycles-frontend 96,011,096,236 ( 45.55%) 97,505,729,341 ( 45.91%) stalled-cycles-backend 35,075,088,633 ( 16.64%) 35,711,751,768 ( 16.82%) instructions 273,684,148,450 ( 1.30) 274,049,581,214 ( 1.29) branches 53,226,557,414 ( 701.444) 53,348,962,263 ( 698.009) branch-misses 154,554,127 ( 0.29%) 154,268,650 ( 0.29%) jobs8 perfstat
stalled-cycles-frontend 88,177,251,162 ( 36.83%) 103,535,913,727 ( 43.35%) stalled-cycles-backend 44,921,182,223 ( 18.76%) 41,112,561,205 ( 17.21%) instructions 309,064,880,320 ( 1.29) 309,601,850,537 ( 1.30) branches 60,082,434,428 ( 696.538) 60,209,294,961 ( 699.665) branch-misses 146,506,310 ( 0.24%) 143,133,935 ( 0.24%) jobs9 perfstat
stalled-cycles-frontend 126,405,421,763 ( 46.82%) 126,381,115,384 ( 46.79%) stalled-cycles-backend 48,186,518,384 ( 17.85%) 47,805,024,235 ( 17.70%) instructions 345,120,620,559 ( 1.28) 345,665,762,319 ( 1.28) branches 67,117,972,931 ( 690.277) 67,245,106,539 ( 691.142) branch-misses 171,595,740 ( 0.26%) 175,971,047 ( 0.26%) jobs10 perfstat
stalled-cycles-frontend 108,499,127,092 ( 36.77%) 129,827,826,624 ( 43.88%) stalled-cycles-backend 56,475,608,845 ( 19.14%) 53,014,780,068 ( 17.92%) instructions 380,780,129,219 ( 1.29) 381,483,929,727 ( 1.29) branches 73,960,230,572 ( 695.824) 74,130,895,621 ( 695.446) branch-misses 173,715,569 ( 0.23%) 172,580,996 ( 0.23%) seconds elapsed 17.051715648 17.086316115 seconds elapsed 13.255099832 13.495843677 seconds elapsed 13.474066502 13.695139647 seconds elapsed 13.362502512 13.388860863 seconds elapsed 16.476014118 16.514753664 seconds elapsed 18.547854105 18.771483547 seconds elapsed 20.866319217 21.225159845 seconds elapsed 23.216923356 23.107110780 seconds elapsed 26.062994594 26.116991016 seconds elapsed 28.416572933 28.463931431