T5 performance

L

lhurt

New member
Compared to T3, T5 has got a bit faster CPU and hyped as faster-newer-better, so naturally I expected improved performance. Now I am involved in some proprietary palm software development, remote sync is done via email - data is recieved as email meassages and parsed into palm databases - lots of data, lots of small databases - more memory-intensive than CPU-intensive. Certain test package takes about 55 seconds to parse on T3 and 2:40 on T5. Wow. I've downloaded a couple of benchmarks - never used them before, so don't blame me for poor choice if it is poor :) Results are:


PocketMark v0.2.1

T3:
IntMarks: 923
MemMarks: 8876
FloatMarks: 595

PALMMARKS: 2067

DBMarks: 14200
GraphMarks: 4675

T5:
IntMarks: 1000
MemMarks: 8876
FloatMarks: 624

PALMMARKS: 2125

DBMarks: 7100
GraphMarks: 4675



pBench 1.0:

T3:
Arithmetics: 623%
Heap Management: 470%
Data access: 1341%
Graphics: 1604%
All results are relative to a Palm m505 (100%).


T5:
Arithmetics: 650%
Heap Management: 488%
Data access: 290%
Graphics: 1426%
All results are relative to a Palm m505 (100%).


You can see that although T5 is a slightly faster than T3 in intereger and float CPU operations it is lags dramatically in database operations - twice as slow according to PocketMark and 4.6 times slower according to pBench. Also graphics performance is not improved according to PocketMark and slightly *worse* according to pBench. One more reason to stick with T3 and a damn good one.

Now what have they done to memory-database opertations?
 
By virtue of the NVFS memory - certain apps will be slower. If you take to devices of the exact same processor speed and modify the memory as Palm did then certain things have to slow down.

I'm surprised that the T5 is actually faster on some apps, I would have thought that it would be slower all around.

It used to be that (T3) that memory wasn't really using "addresses" but they had to change that with the NVFS and as such the processor now has to decide where to send the app for memory and to manage it thus adding to the load.

Still pretty fast compared to the old 33 mhz processors.

Thanks for the info.
 
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