0
votes
0answers
67 views

Disable all disk cache features in Windows 7

I am doing benchmarking of several algorithms involving read/write to disk. As Windows provides some cache features, sometimes I get results like these : first run of the algorithm : 200 seconds ...
0
votes
0answers
54 views

Benchmarking RAID array with gnome-disk-utility

I want to run a quick benchmark to see if there is any performance advantage of my RAID 1 array. Array is the system disk, and while I can run benchmarks on each single disk, I can't find how to do it ...
2
votes
2answers
1k views

Test disk write speed on existing partition

I want to benchmark write speeds on a disk in an existing server setup. I suspect there is a problem with the write perf of the controller. Benchmarks I have tried (SiSoft Sandra, HDTune) report that ...
0
votes
1answer
265 views

Why are some computers are slow during file copy process?

I have a modern laptop (quad-core i5 2.5GHz, 4GB RAM, ) at work. But it is very slow and unresponsive when I copy files in the background.On the other side, at home I have a simple 2-core PC (E2180 2 ...
2
votes
0answers
103 views

How to benchmark hard disk? [duplicate]

I am trying to benchmark my hard disk and find the throughput in Mb/s and latency in milliseconds. This is my code: public class OneMB implements Timer { public static void main(String a[]) throws ...
2
votes
1answer
58 views

Searchable disk benchmarks

I'm trying to find a web site that has a searchable database of hard drive, SSD, and flash drive benchmarks. Ideally I could search by model number and get the following information: Seq read max, ...
1
vote
3answers
2k views

ssd running slow

I have a Kingston SSDNOW on sata 2. Doing a benchmark i get these results: As can be seen, the sequential write performance is terrible. Below even 100 MB/s. Also why do the tests labelled 4k show ...
2
votes
1answer
502 views

Best way to perform simple disk benchmark? (re: operating system drives)

I'm using ESXi to host several virtual servers and I'd like to test the speed of various hard drives and protocols. (ie. I'd like to know which drive/setup works best for working operating systems) ...
1
vote
0answers
1k views

Low 'Burst Rate' from SATA drive in HDTune?

I recently upgraded my laptop's v slow hard drive to a seagate momentus 7200. Everything is working fine, but I'm a bit confused by these benchmark results: The burst rate is significantly less ...
1
vote
2answers
269 views

Why does HDTune report better performing drives 2 months after installing them?

OK, so this is really weird. I ran HDTune on a newly set-up home-built computer and got the following readings from my drives in mid-November. SSD 154 MB/s RAID1 87 RAID0 198 (software ...
3
votes
3answers
1k views

Is a harddisk SATA-1 with 10000 rpm faster than a SATA-2 with 7200 rpm?

I have a Western Digital Sata-1 Raptor 36 GB with 10000 rpm and a Samsung Sata-2 HD501LJ 500 GB with 7200 rpm. Which one is faster if I use the harddisk only as a System disk running the OS on it?
0
votes
2answers
389 views

SiI 3114 vs. ICH7R RAID performance

I just got two new WD5000AAKS 500GB SATA 3.0Gb/s drives, and I need to put them in a RAID-0 array (I know that motherboard-RAID generally isn't the best for speed increases, but I have little choice). ...
3
votes
2answers
2k views

Is it normal for Windows Software Raid (Mirroring) to slow a drive's performance?

I've been doing some performance tests on a few of my drives lately, trying to figure out which combination of drive/raid-level(or not) will give me the best performance (for Hyper-V incase anyone's ...
2
votes
4answers
2k views

Why doesn't my RAMDisk performance match my HDD's performance?

I've been thinking about using temporary GIT repositories on RAMDisks (using DataRAM's ramdisk) as a kind of object store. I was interested to see whether it was worthwhile, so I ran a simple ...
2
votes
3answers
5k views

View real time hard drive transfer rates for Mac

I am looking for a program/app that will show me the current data rate that is being written and/or read from the hard drive in real time, for the Mac. I want to see the rate at which the hard drive ...
1
vote
3answers
2k views

Testing hard disk read write speed

I want to compare the hard disk read/write speeds on two different computers. Is there free software that does this?
17
votes
7answers
2k views

How to measure disk performance? [duplicate]

A friend has asked me to perform maintenance oh his computer. The described symptoms point to a performance issue with the hard drive. I want to objectively confirm this suspicion by measuring the ...