The process of running a computer program to assess performance.

learn more… | top users | synonyms (2)

0
votes
0answers
16 views

How I can use Iozone to measure USB sticks?

I need to do some benchmarkings with various file systems (ext3, ntfs, ...) on a USB flash driver. I will format the USB stick every time to do the tests. The problem is I don't know how appoint the ...
0
votes
1answer
39 views

How to tell, before buying, if a given graphics card will play Full HD video?

I am looking for the cheapest video card that would be capable of smooth playback of Full HD (1080p) video on a Full HD screen. An answer by @Mikhail on a related question briefly mentioned that: ...
1
vote
0answers
76 views

Comparing an i7 (3.2Ghz) against an i5 (2.5Ghz) using linpack shows the i7 being worse

I am trying to compare the number crunching performance of an i5-3210M @ 2.5GHz with 6GB ram and an i7 970 @3.2GHz with 24GB ram. The results are so unexpected I presume I am either doing something ...
3
votes
5answers
474 views

What options do I have for benchmarking software? [duplicate]

Possible Duplicate: What are the best free(ware?) PC performance benchmarking options out there? Can anyone tell me some benchmark software for Windows? I'm using PassMark PerformanceTest ...
0
votes
1answer
40 views

Benchmark performance 30% speedup in mains over battery operation?

This observation arose as I was evaluating the running time efficiency of various implementations of a prime sieve algorithm. The surprise was finding that differences between the best algorithms was ...
0
votes
0answers
17 views

Is there a way to run a job exclusively on a chip?

We've got a bunch of large (1TB+) NUMA machines at work and have been getting a lot of noise in benchmarking. We've noticed that run times for our application are very consistent from one run to the ...
1
vote
0answers
27 views

USB bench marking shows faster write speeds after fragmentation? How? [duplicate]

I am currently benchmarking my 3.0 USB Flash drive both fragmented and defragmented. My initial setup consisted of Crystal Disk Mark and a flash drive with no files on it. I recorded the output ...
5
votes
2answers
1k views

Makefile fails to install file correctly, installing HPL

I started installing HPL a while ago, and had a related question. I've been following along with this guide from Intel. I figure this warrants a whole new one. When I try to make the archive, the ...
1
vote
1answer
37 views

MIPS as a measurement of raw integer data processing

I'm looking for a way to contextualize generational differences in computing performance. Is this a correct application of the MIPS measurement? MOS 6502 - 0.500 MIPS at 1 MHz. As an 8-bit CPU it ...
32
votes
8answers
36k views

How can I produce high CPU load on a Linux server?

I'm currently in the process of debugging a Cacti installation and want to create CPU load to debug my CPU utilization graphs. I tried to simply run cat /dev/zero > /dev/null, which works great, ...
0
votes
0answers
63 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 ...
8
votes
4answers
23k views

AFP, SMB, NFS which is the best data transfer protocol?

I have a computer with large hard disks running Gentoo. I have to serve med/big files via a wired network to Apple devices (all of them running OS X). Which protocol is the best for the following ...
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 ...
6
votes
2answers
347 views

What are good benchmarking programs for measuring usb stick performances?

Title pretty much says it all ... anyone know of a benchmarking program for measuring usb sticks read/write speeds ? (if it can produce its own files, even better ... in terms of (lots of small ...
2
votes
2answers
3k views

ZFS raidz2 performance issues read/write speeds on Freenas

I'm having some performance issues on my home backup FreeNas box using a raidz2 configuration and I am wondering what might be causing it (not enough processing power, eco drives?). It's running: ...
2
votes
2answers
109 views

SD card speed differences

I'm trying to benchmark a micro SD card, and in the process it seems that my laptop's card reader is to blame, but I would like to make more experiments to be sure of it. I have a supposedly Class 10 ...
0
votes
0answers
60 views

Is there any HPL benchmark analogs for CPU/GPU clusters?

I'm building little CPU/GPU cluster for my home needs. Im using this cluster for CPU and CUDA computing. I have 3 PCs and each of it has 1 or 2 videocards and each of it has different CPUs. I need to ...
0
votes
0answers
47 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 ...
0
votes
1answer
277 views

Clues to guess CPU performance for single-threaded tasks

Can one somehow guess how for example Intel Core i5-3320M @ 2.60GHz (dual core) and Intel Core i7-3612QM @ 2.10GHz (quad core) would compare on basic single-threaded tasks? I know this is problematic, ...
10
votes
2answers
11k views

How come my Intel 520 180GB SSD performs extremely poorly?

I recently installed a new Intel 520 series 180GB SSD in my brand new MacBook Pro. The system is as follows: Model: MacBook Pro 15-inch, Late 2011 (MacBookPro8,2) Processor: 2.4 GHz Intel Core i7 ...
0
votes
0answers
198 views

Benchmarking: VM vs. Bare-Metal

I have setup a test machine running Windows Server 2012 with Hyper-V role installed. There is one Windows Server 2012 VM running on top of that. This VM is the same server image that is also running ...
0
votes
1answer
86 views

HTTPD benchmarking tool that parses output

I'm trying to benchmark a HTTP server. It's becoming quite obvious that I won't get accurate numbers if the tool being used doesn't parse any output (the JavaScript and HTML). Does anyone know of a ...
0
votes
1answer
68 views

Find out information about installed hard- and software using the terminal without admin rights

I have access to a remote server, to which I login via ssh. I don't have admin rights, but I like to find out as much as possible about the machine, among other things to see If I get what I pay for. ...
4
votes
2answers
523 views

What does the file /proc/cpuinfo tell me about the hardware?

I rent a server which should have "2 Cores x 2,2 GHz". When in run the command cat /proc/cpuinfo I get the following result: processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : ...
0
votes
1answer
515 views

What are the fastest CF (Compact Flash) readers?

I'm looking for a good CF reader, but it's not easy to find readers specs on online stores, so I don't know what I can buy. Are there any benchmarks online? Now I have an external Skintek CF reader ...
0
votes
0answers
45 views

how does RAM affect on user+sys time of time command linux

I'm testing two machines with time command. Technically machines are identical, CPUs are the same, memories -too, conditions - too, no current processes except for the benchmarking program are ...
2
votes
2answers
848 views

Is Prime95 a dual-core tool?

Does Prime95 use multiple cores? (Is there a difference in this regard between running it from Windows, UBCD, or UBCD4Win?) If it doesn't, are there tools out there that will (preferably via a boot ...
0
votes
0answers
37 views

Low memory bandwidth

I have ddr2-667 ram and I measured my memory bandwidth via STREAM tool. Here is my results: Function Rate (MB/s) Avg time Min time Max time Copy: 2229.0490 0.0158 ...
0
votes
1answer
42 views

Low benchmark= faulty or slightly faulty cpu?

If a phone/computer scores slightly lower on a benchmark than the rest...not drastically but significant enough to be noticed could the cpu be damaged? What I am asking is that if a cpu is damaged ...
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 ...
1
vote
1answer
172 views

Why the here-strings in bash are slower than piping the input to a command?

I compared the execution time for unix here-strings and pipe data input to bc: pipe time for i in {1..1000} do echo "sqrt(5.09)" | bc -q > /dev/null done real 0m3.584s user ...
0
votes
1answer
57 views

How can I decide real vs virtual cores if i need intensive calculus?

Assume that I have a computer called A with a processor that has two cores and has hyperthreading, i.e it has 2 cores with 4 threads (I understand that this can supply to 4 processes simultaneously), ...
0
votes
1answer
71 views

can benchmarking burn computer components

I only have the ordinary cooling mechanism of a computer. 1 fan for the power supply and two fans that share the same cable. Can benchmarking my computer lead to burning of the processor or the ram or ...
0
votes
1answer
184 views

Multi-threaded execution of simple perl/python script

Some years ago a friend created a 'benchmark' (Note: Not a benchmark) by which wouldwhich we measure one raw aspect of computing power. Namely how fast (or indeed slowly) the computer could count to ...
1
vote
2answers
216 views

That Unix game used for testing and benchmarking the system

I remember having read about a game that was used in the first UNIX versions for testing if all libraries have been installed correctly and the overall benchmark of the system. Does anyone know what ...
0
votes
1answer
250 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 ...
7
votes
3answers
5k views

Why the results of Truecrypt and cryptsetup (LUKS) benchmarking are so different?

I want to encrypt a part of my HDD. But before that I wanted to benchmark the different algorithm available wondering if I should choose aes-xts-256 or aes-xts-512. Note: I don't have aes hardware ...
1
vote
1answer
225 views

How to measure the render time of 3ds max?

How do I measure the render time of 3ds max? I would like a solution that doesn't involve me sitting glued to the computer during the render time! It also has to be sort of accurate. My specific ...
4
votes
2answers
633 views

Is it necessary to tweak config for a new SSD?

I've read some years-old posts that say you should tweak some options in Windows to get the best performance. But then I read that this is no longer necessary with today's SSDs. I installed a new ...
3
votes
4answers
3k views

How to test router-to-PC connection speed?

Is there a way to benchmark how fast my router is connected to my PC, independent of the internet? I've had slower-than-usual internet-based benchmarks, and I'm having a hard time figuring out if ...
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 ...
3
votes
1answer
1k views

How do I tell which desktop CPU is best for virtualization with 6-8 virtual machines?

I am looking to run between 6 and 8 virtual machines, each running Windows XP. Each virtual machine would run Magic Online (MTGO) and a few scripts for data sharing. The host itself would run nothing ...
5
votes
3answers
3k views

Is there a list of graphics cards ordered by relative performance?

I'm struggling to make sense of graphics card manufacturers' cryptic names and codes for their products. For example, some cards with a higher number or code in the name are actually less powerful ...
4
votes
2answers
150 views

Quality control for a large number of promotional USB flash drives

My company is ordering a large number of USB flash drives for promotional purposes as well as retail sales. We will be getting a sample of them shortly to test. The previous lot that we had failed ...
0
votes
1answer
145 views

Is bigger capacity ram faster then smaller capacity ram for same clock and CL?

I know that bigger capacity hard-drives with the same RPM are faster then smaller capacity hard-drives. I was wondering if the same is true for ram. Given two ram clocked at 1600mhz and with identical ...
2
votes
2answers
1k views

Poor performance of single processor 32bit Windows XP xompared SMP in VBA+Excel

Welcome! On many computers I experienced poor performance of 32 bit guests running on 64 bit Linux host (I used only the Debian family). At last I managed to collect benchmark data. I made the ...
0
votes
0answers
237 views

Why is the clock speed readout greater than the maximum?

(click for full-size image) What is this madness? (I'm aware that the top number refers to the non-Turbo Boosted clock speed, but what of the others?)
4
votes
2answers
170 views

Do uninterruptible power supply increase the life expentency of hardware?

Do UPS increase the performance or life expectancy of the hardware connected to it? What if the UPS has a built in line conditioner?
1
vote
1answer
300 views

Intel's i7 2700k vs 3770k on Ram Frequency

The major difference (IMO) between the two is the max RAM frequency. 2700K = 1333 MHz 3770k = 1600 MHz Will this make noticeable difference and if yes in what type of applications will I ...
14
votes
2answers
31k views

Good OS X Hard Drive Benchmark

What software can provide some insight on the performance of the hard drive in my MacBook Pro? I would be interested in both sequential and random read and write performance. This is in the context ...