2Gb vs 3Gb Phtoshop benchmark on T60p
Posted: Tue Dec 04, 2007 1:14 am
A quick test before and after upgrading my RAM from 2 to 3Gb.
Tests from a freshly booted thinkpad with only Photoshop loaded (and my usual misc services).
I waited till the processor and RAM usage were fairly constant, and no disk activity, before starting the tests.
------------------------------------------------------------
Total 2.1Gb
Available 1.2G
System cache 0.9Gb
Rasterised 9Mb Illustrator file in Photoshop (16028x10877 px)
Elapsed time is 3:29
Processor usage around 75%
Not using the scratch disk.
Resized the same image 125%
Elapsed time is 6:07
Processor usage around 25%
Fully using the scratch disk.
------------------------------------------------------------
Total 3.1Gb
Available 2.2G
System cache 0.9Gb
Rasterised 9Mb Illustrator file in Photoshop (16028x10877 px)
Elapsed time is 3:27
Processor usage around 75%
Not using the scratch disk.
Resized the same image 125%
Elapsed time is 5:05
Processor usage around 25%
Fully using the scratch disk after the progress bar reached 30% of the way across.
------------------------------------------------------------
Performance increase was 120%. Or one-fifth faster with 3Gb over the 2Gb. This gain was only obvious in the Image Resize tests as that is when the RAM limit was exceeded. Prior to exceeding the available RAM, the processor was the bottleneck.
Obviously as soon as RAM ran out the performance bottleneck became the scratch disk. I have a secondary HD in the Ultrabay designated as the scratch disk.
Obviously this was a quick and dirty test without doing multiple samples etc. I hope it is useful/illuminating.
Edited -- T60p, T7600 CPU 2.33GHz, XP Pro SP2, Adobe CS2, 100Gb SATA HD (primary), 40Gb PATA HD (in Ultrabay).
Tests from a freshly booted thinkpad with only Photoshop loaded (and my usual misc services).
I waited till the processor and RAM usage were fairly constant, and no disk activity, before starting the tests.
------------------------------------------------------------
Total 2.1Gb
Available 1.2G
System cache 0.9Gb
Rasterised 9Mb Illustrator file in Photoshop (16028x10877 px)
Elapsed time is 3:29
Processor usage around 75%
Not using the scratch disk.
Resized the same image 125%
Elapsed time is 6:07
Processor usage around 25%
Fully using the scratch disk.
------------------------------------------------------------
Total 3.1Gb
Available 2.2G
System cache 0.9Gb
Rasterised 9Mb Illustrator file in Photoshop (16028x10877 px)
Elapsed time is 3:27
Processor usage around 75%
Not using the scratch disk.
Resized the same image 125%
Elapsed time is 5:05
Processor usage around 25%
Fully using the scratch disk after the progress bar reached 30% of the way across.
------------------------------------------------------------
Performance increase was 120%. Or one-fifth faster with 3Gb over the 2Gb. This gain was only obvious in the Image Resize tests as that is when the RAM limit was exceeded. Prior to exceeding the available RAM, the processor was the bottleneck.
Obviously as soon as RAM ran out the performance bottleneck became the scratch disk. I have a secondary HD in the Ultrabay designated as the scratch disk.
Obviously this was a quick and dirty test without doing multiple samples etc. I hope it is useful/illuminating.
Edited -- T60p, T7600 CPU 2.33GHz, XP Pro SP2, Adobe CS2, 100Gb SATA HD (primary), 40Gb PATA HD (in Ultrabay).
