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Author Topic: A little ESATA benchmark for GuruPlug  (Read 3462 times)
dreamdreams
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« on: May 21, 2010, 09:04:56 PM »

# dd if=/dev/zero of=/dev/sdc8 bs=1M count=2800
2800+0 records in
2800+0 records out
2936012800 bytes (2.9 GB) copied, 59.4053 s, 49.4 MB/s

# time dd if=/dev/sdc of=/dev/null bs=1M count=2500
2500+0 records in
2500+0 records out
2621440000 bytes (2.6 GB) copied, 28.3957 s, 92.3 MB/s

My hard drive is:
scsi 1:0:0:0: Direct-Access     ATA      Hitachi HTS54505 PB4O PQ: 0 ANSI: 5

My esata hard drive box is:
YDStar, t12su
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shoragan
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« Reply #1 on: May 22, 2010, 12:53:33 PM »

Code:
# dd if=/dev/zero of=/dev/sda bs=1M count=3000
3000+0 records in
3000+0 records out
3145728000 bytes (3.1 GB) copied, 31.0262 s, 101 MB/s
# dd if=/dev/sda of=/dev/null bs=1M count=3000
3000+0 records in
3000+0 records out
3145728000 bytes (3.1 GB) copied, 38.9851 s, 80.7 MB/s
# uname -a
Linux sheevaplug-debian 2.6.32-00007-g56678ec #1 PREEMPT Mon Feb 8 03:49:55 PST 2010 armv5tel GNU/Linux

The disk is a 'WDC WD10EADS-00P8B0' (it connected at 1.5 Gbps instead of 3.0 Gbps):
Code:
ata1: SATA link up 1.5 Gbps (SStatus 113 SControl F310)
ata1.00: ATA-8: WDC WD10EADS-00P8B0, 01.00A01, max UDMA/133
ata1.00: 1953525168 sectors, multi 0: LBA48 NCQ (depth 31/32)
ata1.00: configured for UDMA/133
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varkey
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« Reply #2 on: May 27, 2010, 03:15:18 AM »


sheevaplug-debian:/home/sata# dd if=/dev/zero of=/dev/sdc1 bs=1M count=2800
2800+0 records in
2800+0 records out
2936012800 bytes (2.9 GB) copied, 27.6784 s, 106 MB/s


sheevaplug-debian:/home/sata# dd if=/dev/sdc of=/dev/null bs=1M count=2500
2500+0 records in
2500+0 records out
2621440000 bytes (2.6 GB) copied, 32.1343 s, 81.6 MB/s


Hard disk is Western Digital Green 2TB - WD20EADS
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Rabeeh Khoury
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« Reply #3 on: May 27, 2010, 04:26:23 AM »

Can you please retest with adding 'time' before the 'dd' command?

Curious to see CPU utilization on this
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Ira
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« Reply #4 on: May 30, 2010, 11:09:46 AM »

Can you please retest with adding 'time' before the 'dd' command?

Curious to see CPU utilization on this

This is with a WD 1gb Black drive in a Rosewill ESATA enclosure.

Ira

Code:
sheevaplug-debian:~# time dd if=/dev/sda1 of=/dev/null bs=1M count=2500
2500+0 records in
2500+0 records out
2621440000 bytes (2.6 GB) copied, 35.0326 s, 74.8 MB/s

real    0m35.045s
user    0m0.020s
sys     0m19.050s
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tzyn
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« Reply #5 on: May 31, 2010, 08:11:47 AM »

eSATA Sheevaplug (Debian Lenny - Kernel 2.6.33)

HDD 2,5" 500GB Samsung M7 (HM500JI) in Evertech ET-1571 2,5" eSATA/USB Case
Code:
sheevaplug:~# dd if=/dev/sda of=/dev/null bs=1M count=2500
2500+0 records in
2500+0 records out
2621440000 bytes (2.6 GB) copied, 29.4192 s, 89.1 MB/s

This is the maximum of the hdd. Normal speed range over the whole disc: 45-90MB/s, avg ~65-70MB/s.
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