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