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Everest Home Benchmark Memory?


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#1 302Xplorer

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Posted 29 September 2007 - 10:23 AM

I just installed Everest Home Edition to check the performance of my memory.
I ran the benchmark tool and got these results:
Memory Read: 1460 MB/s @ 1600mhz
Memory Write: 632 MB/s @1600mhz
Memory Latency: 154.2 MB/s @1600mhz 2.5-3-3-6

What do these numbers mean? How do I use them to check my performance?

My PC's info is as follows:
P4 1.6Ghz w/ 768mb of unmatched PC 2100 DDR SDram
DIMM1: 512 Samsung M3
DIMM2: 256 Micron Tech

Do I have this set up correctly for the best performance?

Thanks in advance,
Ted

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#2 Mr Alpha

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Posted 29 September 2007 - 12:51 PM

Those numbers seem a little low, especially the write bandwidth. My guess is that there was something else using the memory while you were running the benchmark. Try running it is safe mode.

Sidenote: Latency isn't measured in MB/s but ns.
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#3 302Xplorer

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Posted 29 September 2007 - 01:37 PM

Thanks for the reply Mr. Alpha.
How can you tell the numbers are low? What are you comparing them too? I would like to know how I could determine weather those values are good or not. What would be normal benchmarks for a system set up like mine?

After running the benchmarks in safe mode, the write value went down.

New values:

Memory Read: 1465 MB/s @ 1600mhz
Memory Write: 550 MB/s @1600mhz
Memory Latency: 154.3 ns 2.5-3-3-6

#4 Mr Alpha

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Posted 29 September 2007 - 04:25 PM

The memory latency is in the ballpark. DDR266 usually is around 100-200 ns, depending on memory controller and RAM.

Max theoretical read bandwidth is 2100 MB/s. 1465 MB/s is maybe a 70% efficiency which is decent. The write performance is really bad though. Less than half of the read bandwidth. It could of course be a bug in the memory benchmark. Or it may be some issue of your particular component mix.
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#5 DaChew

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Posted 29 September 2007 - 05:07 PM

those are a little below average for that P4 and 2100 ddr when you look at the tables, mismatched ram is probably not helping it


what can you say, it's an older computer

it's amazing how much faster newer systems are, latency however isn't any better with ddr2, the better ddr still has lower latency
Chewy

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#6 302Xplorer

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Posted 29 September 2007 - 05:11 PM

I'm looking into getting another stick of 512 to use in place of the 256.
When you say "matched" pair, does that mean of the same brand or will just the same specs do?

In the mean time, does it matter which DIMM slot I have the mismatched memory in? Should the larger go in the first slot or does that even matter?

Thanks again,

Ted

#7 DaChew

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Posted 29 September 2007 - 05:16 PM

actually your 512 stick may be holding the system back, that memory is hard to find compatible upgrades for and too expensive then

there's an overclock under computer in everest that gves the specs of your memory and what settings it's running at

CPU Speed:
CPU Clock 2519.73 MHz
CPU Multiplier 9.0x
CPU FSB 279.97 MHz (original: 200 MHz, overclock: 40%)
Memory Bus 251.97 MHz

CPU Cache:
L1 Code Cache 64 KB (Parity)
L1 Data Cache 64 KB (ECC)
L2 Cache 512 KB (On-Die, ECC, Full-Speed)

Motherboard Properties:
Motherboard ID 63-1408-000001-00101111-063005-K8T800P$A0036001_BIOS DATE: 06/30/05 17:34:14 VER: 08.00.09
Motherboard Name Asus A8V Deluxe (5 PCI, 1 AGP, 4 DDR DIMM, Audio, Gigabit LAN, IEEE-1394)

Chipset Properties:
Motherboard Chipset VIA K8T800Pro, AMD Hammer
Memory Timings 2.5-4-4-10 (CL-RCD-RP-RAS)
Command Rate (CR) 1T

SPD Memory Modules:
DIMM1: Micron Tech. 256 MB PC4000 DDR SDRAM (2.5-4-4-10 @ 250 MHz) (2.0-3-3-8 @ 200 MHz)
DIMM2: Micron Tech. 256 MB PC4000 DDR SDRAM (2.5-4-4-10 @ 250 MHz)


my tests have shown faster to be better at some things than more ram

my latency is 44ns
Chewy

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#8 302Xplorer

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Posted 29 September 2007 - 05:35 PM

Huh, that is interesting.

I found some 512 on newegg for about $40, that's not too bad.

Just ran the same test as you, here are the results:

CPU Properties
CPU Type Intel Pentium 4
CPU Alias P68, Willamette, A80528
CPU Stepping D0
Engineering Sample No
CPUID CPU Name Intel® Pentium® 4 CPU 1.60GHz
CPUID Revision 00000F12h

CPU Speed:
CPU Clock 1593.97 MHz (original: 1600 MHz)
CPU Multiplier 16.0x
CPU FSB 99.62 MHz (original: 100 MHz)
Memory Bus 132.83 MHz

CPU Cache:
L1 Trace Cache 12K Instructions
L1 Data Cache 8 KB
L2 Cache 256 KB (On-Die, ECC, ATC, Full-Speed)

Motherboard Properties:
Motherboard ID 11/22/2001-<I845>-P4B266LA
Motherboard Name Asus P4B266-LA

Chipset Properties:
Motherboard Chipset Intel Brookdale i845D
Memory Timings 2.5-3-3-6 (CL-RCD-RP-RAS)

SPD Memory Modules:
DIMM1: Samsung M3 68L6423CTL-CB0 512 MB PC2100 DDR SDRAM (2.5-3-3-6 @ 133 MHz) (2.0-2-2-5 @ 100 MHz)
DIMM2: Micron Tech. 16VDDT3264AG-265A1 256 MB PC2100 DDR SDRAM (2.5-3-3-6 @ 133 MHz) (2.0-2-2-5 @ 100 MHz)

#9 DaChew

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Posted 29 September 2007 - 05:46 PM

2.0-2-2-5 @ 100 MHz)

can you set the memory for this in bios, it might do better running in sych with that cpu
Chewy

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#10 302Xplorer

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Posted 29 September 2007 - 06:09 PM

No dice, bios won't let me change memory settings.

#11 DaChew

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Posted 29 September 2007 - 08:17 PM

I wouldn't even spend 40$ on that computer except for something that could be pulled and put in a new computer(like a dvd burner) optimize your computer, you already have enough ram
Chewy

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