RAID Setup
Controller: ?3ware 9750i4 Level: RAID10 64K Disks: 4 x ?WD5003ABYX
Write Cache Setting: Enabled Read Cache Setting: Intelligent Drive Queuing Mode: Enabled StorSave Profile: Performance
./tw_cli_amd64 /c7/u0 remove ./tw_cli_amd64 /c7 add type=raid10 disk=1-4 stripe=64 noautoverify storsave=perform
RAID Performance
blockdev --getra /dev/sda
256
cat /sys/block/sda/queue/scheduler
noop anticipatory deadline [cfq]
cat /sys/block/sda/device/queue_depth
254
echo 3 > /proc/sys/vm/drop_caches
dd if=/dev/sda of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 68.2168 s, 246 MB/s
dd if=/dev/zero of=/dev/sda bs=1M count=16000
16777216000 bytes (17 GB) copied, 65.1826 s, 257 MB/s
parted /dev/sda mklabel msdos
parted /dev/sda mkpart p 2048s 64g
blockdev --rereadpt /dev/sda
mkfs.ext3 /dev/sda1
mount -o noatime /dev/sda1 /mnt
echo 3 > /proc/sys/vm/drop_caches
bonnie++ -d /mnt -u root -n 0 -r 6000
Version 1.96 ------Sequential Output------ --Sequential Input- --Random-
Concurrency 1 -Per Chr- --Block-- -Rewrite- -Per Chr- --Block-- --Seeks--
Machine Size K/sec %CP K/sec %CP K/sec %CP K/sec %CP K/sec %CP /sec %CP
finnix 12G 708 99 151926 25 87302 11 2095 91 336360 16 729.9 18
cd /tmp; http_proxy=http://proxy.lan.gsd-software.net:8080 wget http://debian.gsd-software.net/benchmark/seeker_baryluk_x86; chmod +x seeker_baryluk_x86
for threads in 01 02 04 08 16 32; do echo -n "Threads: $threads "; ./seeker_baryluk_x86 /dev/sda $threads | grep Results; sleep 1; done
Threads: 01 Results: 80 seeks/second, 12.412 ms random access time (37821600 < offsets < 999048794648)
Threads: 02 Results: 161 seeks/second, 6.187 ms random access time (571887398 < offsets < 999947552077)
Threads: 04 Results: 254 seeks/second, 3.935 ms random access time (12831489 < offsets < 999831253320)
Threads: 08 Results: 322 seeks/second, 3.104 ms random access time (21087022 < offsets < 999918713823)
Threads: 16 Results: 399 seeks/second, 2.506 ms random access time (47670593 < offsets < 999927717192)
Threads: 32 Results: 466 seeks/second, 2.145 ms random access time (81058261 < offsets < 999852592725)
