1 ; Copyright (c) 2009 The Chromium Authors. All rights reserved. 2 ; Use of this source code is governed by a BSD-style license that can be 3 ; found in the LICENSE file. 4 ; 5 ; A simulation of disk traffic from power on to login screen. This is taken 6 ; from an average of 3 boots. It does not include the traffic generated by 7 ; the loader, but it does include the traffic generated by mounting the root 8 ; file system. It does not include a sync, the dirty pages waiting to be 9 ; written to the disk are accounted for in the "login" script. 10 ; 11 12 [boot] 13 filename=${FILENAME} 14 size=${FILESIZE} 15 16 time_based 17 runtime=5m 18 19 ioengine=libaio 20 iodepth=4 21 direct=1 22 23 readwrite=randrw 24 ; 86,395 KiB (3,900 ios) Read 404 KiB (210 ios) Written 25 ; rwmixwrite = 2.10% by ios 26 rwmixwrite=2 27 28 ; Probabilities merged down to the 8 most common sizes. 29 ; Read 30 ; 4k: 51.461 % 31 ; 8k: 3.059 % 32 ; 12k: 4.308 % 33 ; 16k: 16.936 % 34 ; 32k: 9.167 % 35 ; 68k: 5.313 % 36 ; 80k: 5.291 % 37 ; 128k: 4.464 % 38 ; Write 39 ; 4k: 91.463 % 40 ; 8k: 4.878 % 41 ; 24k: 3.659 % 42 43 ; Fudge numbers to add up to 100% 44 bssplit=4k/52:8k/3:12k/4:16k/17:32k/9:68k/6:80k/5:128k/4,4k/91:8k/5:24k/4 45 46 norandommap 47 48
