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HacksAndMore640 Kb should be enough memory for anybody... |
| 4 March |
Hello,
last week my new SSD drive is arrived, so I’ve want tell you the REAL performance of this disk.
We bought a 128GB Kingston SSDNow V+ Series sata2 drive model SNVP325-S2/128GB to use on a IBM thinkpad T60.
Before installing this drive I’ve ran a test on the original sata2 drive from IBM and these are detail:
Writing 1GB
crash@hal9000:~$ dd if=/dev/zero of=test1GB bs=4k count=250000
250000+0 records in
250000+0 records out
1024000000 bytes (1,0 GB) copied, 38,6391 s, 26,5 MB/s
Reading 1 GB
crash@hal9000:~$ dd if=test1GB of=/dev/null bs=4k count=250000
250000+0 records in
250000+0 records out
1024000000 bytes (1,0 GB) copied, 22,2653 s, 46,0 MB/s
As you can the real performance are 26,5 MB/s (write) and 46 MB/s (read)
Then I’ve cloned my system (use the tool you prefer) an installed the new SSD.
Restored the O.S. with no problem and the operating system (debian squeeze) boot in 7 second….
Amazing…
Then I’ve repeated the test
Writing 1GB
crash@HAL9000:~$ dd if=/dev/zero of=test1gb bs=4k count=250000
250000+0 records in
250000+0 records out
1024000000 bytes (1,0 GB) copied, 7,39791 s, 138 MB/s
Reading 1 GB
crash@hal9000:~$ dd if=test1GB of=/dev/null bs=4k count=250000
250000+0 records in
250000+0 records out
1024000000 bytes (1,0 GB) copied, 3,50632 s, 292 MB/s
So.. the new performance are 138 MB/s (write) and 292 MB/s (read)
Amazing….
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UPDATE more Info about:
HAL9000:~# hdparm -t /dev/sda
/dev/sda:
Timing buffered disk reads: 334 MB in 3.01 seconds = 110.84 MB/sec