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On 11/07/2015 02:52 PM, Bill Kenworthy wrote: |
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> On 08/11/15 05:22, thelma@×××××××××××.com wrote: |
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>> On 11/05/2015 11:06 PM, J. Roeleveld wrote: |
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>> [snip] |
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>> |
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>>>> You might be right, maybe I'll add one HDD for backup (good suggestion). |
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>>>> The killer is my 1TB SSD $499.99CAD |
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>>> |
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>>> Get 1 SSD for the OS, software and your home directory. (240GB is usually |
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>>> enough) |
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>>> And 1 big HDD for your data. |
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>>> |
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>>> Keep your documents and other data out of the home directory if doing this. |
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>>> Reason I suggest your home directory on SSD is because programs tend to store |
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>>> a lot in your home directory which can benefit from a faster disk. |
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>> |
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>> It seems to me that SSD drives are slower than standard spinning disks. |
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>> I was just comparing my two disk with hdparm |
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>> |
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>> 1.) Western Digital model: Model=WDC WD2002FAEX-007BA0 |
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>> hdparm -Tt /dev/sda |
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>> |
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>> /dev/sda: |
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>> Timing cached reads: 9406 MB in 2.00 seconds = 4705.88 MB/sec |
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>> Timing buffered disk reads: 432 MB in 3.00 seconds = 143.92 MB/sec |
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>> |
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>> 2.) Intel SSD model Model=INTEL SSDSC2BF480A5 |
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>> /dev/sda: |
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>> Timing cached reads: 1292 MB in 2.00 seconds = 645.51 MB/sec |
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>> Timing buffered disk reads: 536 MB in 3.00 seconds = 178.63 MB/sec |
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>> |
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>> It seems to me the spinning disk WD is faster than my Intel SSD |
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>> So is there an advantage of overpaying for SSD? |
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>> |
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>> -- |
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>> Thelma |
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>> |
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> |
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> olympus ~ # hdparm -tT /dev/sda |
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> |
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> /dev/sda: |
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> Timing cached reads: 20442 MB in 1.99 seconds = 10278.90 MB/sec |
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> Timing buffered disk reads: 1164 MB in 3.00 seconds = 387.66 MB/sec |
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> olympus ~ # hdparm -tT /dev/sdb |
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> |
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> /dev/sdb: |
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> Timing cached reads: 20320 MB in 1.99 seconds = 10218.13 MB/sec |
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> Timing buffered disk reads: 300 MB in 3.00 seconds = 99.88 MB/sec |
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> olympus ~ # |
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> |
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> |
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> Something is not right with your system ... |
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> |
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> sda is an older intel ssd, sdb is a western digital red which somethimes |
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> gets close to that your speed. |
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> |
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> try multiple measurements, no load on the system. |
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|
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I did run test several times, still get the same numbers. Maybe the |
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reason is that one system is much smaller slower. |
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The SSD is running on smaller box: Atom-TM-_CPU_330_@_1.60GHz |
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The WD is bitter unit: AMD_FX-tm-8150_Eight-Core_Processor |
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-- |
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Thelma |
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