Greetings,
I'm seeing some disturbingly pathetic read performance on my shiny new 17" MacBook Pro w/my equally shiny and new Vertex 3 SSD.
Here are the Xbench results:
And here are the AJA System Test results:
Note the 'drop-outs'. Settings were:
Test: Disk Read/Write
Video Frame Size: 1920x1080 10-bit
File Size: 128 MB
Video Device: <empty>
Disable file system cache: <checked>
The overall/average(?) stats in the box to the right of the test show:
Write: 439.3MB/s
Read: 40.1 MB/s
This is really wretched. I've seen some mention of problematic SATA cable but I've not seen this as a noted symptom.
From hardmac.com:
"Different problems can occur, and are more or less serious. It ranges from the unrecognized SSD to the SSD blocked during installation or in some cases, a temporary freezing with a "death wheel"."
Anyone else have this or any ideas?
Thanks,
--Gary
I'm seeing some disturbingly pathetic read performance on my shiny new 17" MacBook Pro w/my equally shiny and new Vertex 3 SSD.
Here are the Xbench results:
Code:
Disk Test 154.09
Sequential 105.64
Uncached Write 503.08 308.88 MB/sec [4K blocks]
Uncached Write 521.73 295.19 MB/sec [256K blocks]
Uncached Read 91.73 26.85 MB/sec [4K blocks]
Uncached Read 43.36 21.79 MB/sec [256K blocks]
Random 284.65
Uncached Write 2638.43 279.31 MB/sec [4K blocks]
Uncached Write 920.23 294.60 MB/sec [256K blocks]
Uncached Read 2886.75 20.46 MB/sec [4K blocks]
Uncached Read 81.70 15.16 MB/sec [256K blocks]
And here are the AJA System Test results:
Code:
I/O Transactions
Frame MB/sec
Read Write
00.0 287.9 511.4
01.0 510.3 234.7
02.0 511.7 460.6
03.0 13.9 453.8
04.0 506.7 465.6
05.0 501.0 473.4
06.0 503.8 474.7
07.0 496.6 484.8
08.0 16.1 500.1
09.0 491.3 469.7
10.0 509.4 472.5
11.0 14.4 494.8
12.0 15.6 479.7
13.0 15.6 481.2
14.0 192.1 500.4
15.0 193.0 503.5
16.0 515.5 485.5
17.0 503.8 468.0
18.0 15.0 470.5
19.0 508.7 504.2
20.0 505.9 471.9
21.0 506.9 473.1
22.0 16.0 502.8
23.0 14.4 474.2
Note the 'drop-outs'. Settings were:
Test: Disk Read/Write
Video Frame Size: 1920x1080 10-bit
File Size: 128 MB
Video Device: <empty>
Disable file system cache: <checked>
The overall/average(?) stats in the box to the right of the test show:
Write: 439.3MB/s
Read: 40.1 MB/s
This is really wretched. I've seen some mention of problematic SATA cable but I've not seen this as a noted symptom.
From hardmac.com:
"Different problems can occur, and are more or less serious. It ranges from the unrecognized SSD to the SSD blocked during installation or in some cases, a temporary freezing with a "death wheel"."
Anyone else have this or any ideas?
Thanks,
--Gary