Manufacturer:	Intel
Type:	SSD
Model:	520
Firmware:	400i
Capacity:	120 GB
Spindle Speed:	-
Interface:	SATA 6 Gb/s
Cache:	-
NCQ:	Yes

CPU Model

grep name /proc/cpuinfo | uniq
model name  : Intel(R) Xeon(R) CPU E5-2650 0 @ 2.00GHz

CPU Threads

cat /sys/devices/system/cpu/cpu*/topology/core_id | wc -l
32

Cores per CPU

cat /sys/devices/system/cpu/cpu*/topology/core_id | sort | uniq | wc -l
8

Kernel

uname -a
Linux finnix 2.6.36-2-amd64-finnix #1 SMP Mon Dec 20 22:16:37 PST 2010 x86_64 GNU/Linux

Memory

# limited to 1GB
grep Memory: /var/log/dmesg
[    0.000000] Memory: 1018352k/1048576k available (3263k kernel code, 472k absent, 29752k reserved, 3575k data, 616k init)

Memory Performance

dd if=/dev/zero of=/dev/null bs=32M count=1000
33554432000 bytes (34 GB) copied, 4.29949 s, 7.8 GB/s

Disk Controller

lspci | grep AHCI
00:1f.2 SATA controller: Intel Corporation Patsburg 6-Port SATA AHCI Controller (rev 06)

Disk Status

egrep 'ata[0-9]\.|SATA link up' /var/log/dmesg
[    4.931583] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[    4.932352] ata2.00: ATA-9: INTEL SSDSC2CW120A3, 400i, max UDMA/133
[    4.932355] ata2.00: 234441648 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[    4.942625] ata2.00: configured for UDMA/133

HDD Performance

blockdev --getra /dev/sda
256
cat /sys/block/sda/queue/scheduler
noop deadline [cfq]
cat /sys/block/sda/device/queue_depth
31
dd if=/dev/sda of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 40.4196 s, 415 MB/s
dd if=/dev/zero of=/dev/sda bs=1M count=16000
16777216000 bytes (17 GB) copied, 32.485 s, 516 MB/s

blockdev --rereadpt /dev/sda && sleep 3
parted /dev/sda mklabel msdos
parted /dev/sda mkpart p 2048s 64g; sleep 3
blockdev --rereadpt /dev/sda && sleep 3
mkfs.ext3 /dev/sda1
mount -o noatime /dev/sda1 /mnt
echo 3 > /proc/sys/vm/drop_caches
bonnie++ -f -n 128:4096:4096 -r 24000 -d /mnt -u root
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          47G           465053 95 211663 32           409311 31  3944 132
Latency                       60436us     112ms              2660us    4947us
Version  1.96       ------Sequential Create------ --------Random Create--------
finnix              -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
      128:4096:4096 36691  89 134713 98 49887  80 36594  89 147483 98 44200  74
Latency             73150us    1311us   81523us   67444us     647us     100ms
umount /mnt

cd /tmp; 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: 9022 seeks/second, 0.111 ms random access time (31469 < offsets < 120033517536)
Threads: 02 Results: 12411 seeks/second, 0.081 ms random access time (495399 < offsets < 120034110249)
Threads: 04 Results: 14630 seeks/second, 0.068 ms random access time (218494 < offsets < 120033916740)
Threads: 08 Results: 19885 seeks/second, 0.050 ms random access time (36276 < offsets < 120033796397)
Threads: 16 Results: 21548 seeks/second, 0.046 ms random access time (174896 < offsets < 120033991639)
Threads: 32 Results: 48263 seeks/second, 0.021 ms random access time (174896 < offsets < 120034107510)

HDD Performance (20% over-privisioning)

http://www.thomas-krenn.com/de/wiki/SSD_Over-Provisioning_mit_hdparm

hdparm -Np187553319 --yes-i-know-what-i-am-doing /dev/sdb

/dev/sdb:
 setting max visible sectors to 187553319 (permanent)
 max sectors   = 187553319/234441648, HPA is enabled

[ 1853.886487] ata2: SATA link up 6.0 Gbps (SStatus 133 SControl 300)
[ 1853.890588] ata2.00: ATA-9: INTEL SSDSC2CW120A3, 400i, max UDMA/133
[ 1853.890591] ata2.00: 187553319 sectors, multi 16: LBA48 NCQ (depth 31/32), AA
[ 1853.900566] ata2.00: configured for UDMA/133
[ 1853.900572] ata2: EH complete
[ 1853.900645] scsi 1:0:0:0: Direct-Access     ATA      INTEL SSDSC2CW12 400i PQ: 0 ANSI: 5
[ 1853.900763] sd 1:0:0:0: Attached scsi generic sg2 type 0
[ 1853.900840] sd 1:0:0:0: [sdb] 187553319 512-byte logical blocks: (96.0 GB/89.4 GiB)
[ 1853.900909] sd 1:0:0:0: [sdb] Write Protect is off
[ 1853.900912] sd 1:0:0:0: [sdb] Mode Sense: 00 3a 00 00
[ 1853.900941] sd 1:0:0:0: [sdb] Write cache: enabled, read cache: enabled, doesn't support DPO or FUA
[ 1853.901451]  sdb: unknown partition table
[ 1853.901723] sd 1:0:0:0: [sdb] Attached SCSI disk

blockdev --getra /dev/sdb
256
cat /sys/block/sdb/queue/scheduler
noop deadline [cfq]
cat /sys/block/sdb/device/queue_depth
31
dd if=/dev/sdb of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 39.3545 s, 426 MB/s
dd if=/dev/zero of=/dev/sdb bs=1M count=16000
16777216000 bytes (17 GB) copied, 33.5216 s, 500 MB/s

blockdev --rereadpt /dev/sdb && sleep 3
parted /dev/sdb mklabel msdos
parted /dev/sdb mkpart p 2048s 64g; sleep 3
blockdev --rereadpt /dev/sdb && sleep 3
mkfs.ext3 /dev/sdb1
mount -o noatime /dev/sdb1 /mnt
echo 3 > /proc/sys/vm/drop_caches
bonnie++ -f -n 128:4096:4096 -r 24000 -d /mnt -u root
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          47G           466218  94 211279  31           411600  26  4118 143
Latency                       70836us   96708us              2104us    5384us
Version  1.96       ------Sequential Create------ --------Random Create--------
finnix              -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
      128:4096:4096 37560  90 133689  98 49873  80 36321  87 148141  98 44192  73
Latency               116ms    1267us   79401us   88618us     370us     116ms
umount /mnt

cd /tmp; 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/sdb $threads | grep Results; sleep 1; done
Threads: 01 Results: 7119 seeks/second, 0.140 ms random access time (50171 < offsets < 96027209850)
Threads: 02 Results: 9296 seeks/second, 0.108 ms random access time (1310050 < offsets < 96027017973)
Threads: 04 Results: 10853 seeks/second, 0.092 ms random access time (178194 < offsets < 96026727228)
Threads: 08 Results: 16868 seeks/second, 0.059 ms random access time (474662 < offsets < 96027220359)
Threads: 16 Results: 22706 seeks/second, 0.044 ms random access time (25175 < offsets < 96027097255)
Threads: 32 Results: 34249 seeks/second, 0.029 ms random access time (85005 < offsets < 96027205781)

SATA 6G sda 0% OP

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
file1: (groupid=0, jobs=4): err= 0: pid=2897
  read : io=3855MB, bw=345409KB/s, iops=14770, runt= 60001msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=2949
  read : io=2266MB, bw=318292KB/s, iops=7991, runt= 60001msec

file1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=3152
  write: io=1034MB, bw=87553KB/s, iops=21888, runt= 60001msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=3197
  write: io=580716KB, bw=79582KB/s, iops=19895, runt= 60001msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=3256
  write: io=69548KB, bw=140965KB/s, iops=35241, runt= 60002msec

SATA 6G sdb 15% OP

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=4
file1: (groupid=0, jobs=4): err= 0: pid=2916
  read : io=266512KB, bw=353961KB/s, iops=16908, runt= 60001msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=2951
  read : io=1799MB, bw=310322KB/s, iops=5998, runt= 60001msec

file1: (g=0): rw=write, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=3171
  write: io=999MB, bw=86951KB/s, iops=21737, runt= 60001msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=3237
  write: io=533140KB, bw=78789KB/s, iops=19697, runt= 60001msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=3275
  write: io=334628KB, bw=145385KB/s, iops=36346, runt= 60001msec

SATA 6G sda 0% OP scheduler=noop add_random=0

file: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file: (groupid=0, jobs=1): err= 0: pid=4488
  read : io=120468KB, bw=351527KB/s, iops=16300, runt= 60001msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=4576
  read : io=3254MB, bw=125446KB/s, iops=31361, runt= 60001msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=4623
  write: io=154256KB, bw=142376KB/s, iops=35594, runt= 60002msec

dd if=/dev/sda of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 44.2043 s, 380 MB/s

SATA 6G sdb 15% OP scheduler=noop add_random=0

file: (g=0): rw=read, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file: (groupid=0, jobs=1): err= 0: pid=4519
  read : io=36036KB, bw=350120KB/s, iops=15948, runt= 60001msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=4592
  read : io=3276MB, bw=125817KB/s, iops=31454, runt= 60002msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=4670
  write: io=315880KB, bw=145072KB/s, iops=36268, runt= 60001msec

dd if=/dev/sdb of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 47.3134 s, 355 MB/s

SATA 6G sda 0% OP WRITE ONCE scheduler=noop add_random=0

file1: (g=0): rw=write, bs=1M-1M/1M-1M, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=12118
  write: io=3881MB, bw=156326KB/s, iops=152, runt=749847msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=12238
  write: io=542804KB, bw=78944KB/s, iops=19735, runt= 60006msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=12517
  read : io=3101MB, bw=122819KB/s, iops=30704, runt= 60001msec

blockdev --getra /dev/sda
256
cat /sys/block/sda/queue/scheduler
[noop] deadline cfq 
cat /sys/block/sda/device/queue_depth
31

dd if=/dev/sda of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 48.1294 s, 349 MB/s
dd if=/dev/zero of=/dev/sda bs=1M count=16000
16777216000 bytes (17 GB) copied, 42.7718 s, 392 MB/s

blockdev --rereadpt /dev/sda && sleep 3
parted /dev/sda mklabel msdos
parted /dev/sda mkpart p 2048s 64g; sleep 3
blockdev --rereadpt /dev/sda && sleep 3
mkfs.ext3 /dev/sda1
mount -o noatime /dev/sda1 /mnt
echo 3 > /proc/sys/vm/drop_caches
bonnie++ -f -n 128:4096:4096 -r 24000 -d /mnt -u root
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          47G           364438  73 478020  52           2812017  99 852.5 104
Latency                         188ms     459ms                41us     123us
Version  1.96       ------Sequential Create------ --------Random Create--------
finnix              -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
      128:4096:4096 18251  85 151406  97 46157  79 30968  76 167527  99 43314  73
Latency             15630us    1496us   79579us     291ms     701us     118ms

SATA 6G sdb 15% OP WRITE ONCE scheduler=noop add_random=0

file1: (g=0): rw=write, bs=1M-1M/1M-1M, ioengine=sync, iodepth=1
file1: (groupid=0, jobs=1): err= 0: pid=12151
  write: io=1238MB, bw=175069KB/s, iops=170, runt=582233msec

file1: (g=0): rw=randwrite, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=12264
  write: io=593708KB, bw=79799KB/s, iops=19949, runt= 60001msec

file1: (g=0): rw=randread, bs=4K-4K/4K-4K, ioengine=libaio, iodepth=32
file1: (groupid=0, jobs=1): err= 0: pid=12519
  read : io=3062MB, bw=122153KB/s, iops=30538, runt= 60001msec

blockdev --getra /dev/sdb
256
cat /sys/block/sdb/queue/scheduler
[noop] deadline cfq
cat /sys/block/sdb/device/queue_depth
31

dd if=/dev/sdb of=/dev/null bs=1M count=16000
16777216000 bytes (17 GB) copied, 51.8651 s, 323 MB/s
dd if=/dev/zero of=/dev/sdb bs=1M count=16000
16777216000 bytes (17 GB) copied, 48.454 s, 346 MB/s

blockdev --rereadpt /dev/sdb && sleep 3
parted /dev/sdb mklabel msdos
parted /dev/sdb mkpart p 2048s 64g; sleep 3
blockdev --rereadpt /dev/sdb && sleep 3
mkfs.ext3 /dev/sdb1
mount -o noatime /dev/sdb1 /mnt
echo 3 > /proc/sys/vm/drop_caches
bonnie++ -f -n 128:4096:4096 -r 24000 -d /mnt -u root
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          47G           338219  76 478314  52           2825074  99 +++++ +++
Latency                         191ms   57590us               480us      51us
Version  1.96       ------Sequential Create------ --------Random Create--------
finnix              -Create-- --Read--- -Delete-- -Create-- --Read--- -Delete--
files:max:min        /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP  /sec %CP
      128:4096:4096 17451  87 146816  98 46380  81 26782  70 163717  97 41645  73
Latency               151ms    1327us   78204us    1016ms     666us     140ms