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 Home » OlderGeeks.com Freeware Downloads » Benchmarking » ReadSpeed v1.0.7664.1   
File - Download ReadSpeed v1.0.7664.1
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ReadSpeed v1.0.7664.1

GRC's Hyper-accurate mass storage read-performance benchmark

What you discover is going to surprise you.

ReadSpeed is the most accurate benchmark of PC mass storage ever created. It has measurement stability and repeatability of greater than 4 significant digits – better than 1 part in 10,000, or 0.01%.

After you use ReadSpeed on your own system, you may have questions such as: Why is the end of my spinning hard drive half the speed of the front? Why does the end of my SMR-formatted drive show impossibly high performance? Why is the front of my SSD so much slower than the rest and why are there places where it virtually stalls? Are these problems? Should I worry? Is it possible to fix these things?

GRC provides public web forums to provide answers to all of the questions you are going to have. And it's a place to ask questions that haven't yet been answered. It is a community which includes many of the people who helped develop and test ReadSpeed. So, they are knowledgeable and experienced users. The forums will help you create a bootable ReadSpeed USB thumb drive, boot it on most PCs, run ReadSpeed, and put its results into context. And you will be able to compare your results with everyone else's.




As you can see in ReadSpeed's output above:

  • Drive 80 is a high-quality 250GB Samsung 860 EVO SSD. Look at the five regional performance measurements shown. Every one of them is exactly 274.1 megabytes/second, plus or minus zero! This is at least four decimal digits of benchmark accuracy.
  • Drive 81, the SanDisk X300 256GB MSATA, is almost as stable. It is slower and its performance is a bit less rock solid, but even so, each of the five regions is either 182.5 or 182.6. So we're measuring +/- 0.5 accuracy.
  • But look at drive 82! Something is very wrong at the front of this drive. It's also a 256GB SATA SSD, but it's an off-brand “addlink” drive removed from a reconditioned Dell laptop. This drive reveals what most users of the benchmark have seen from their own highly used SSDs. The four regions at 25%, 50%, 75% and 100% are measuring 174.7 to 175.0, so still very stable. But the front of the drive is measuring only 46.2 mb/sec! When you watch this benchmark run (see the video below) you will see the progress bar stall while the SSD struggles to read some regions that are clearly having serious trouble. It ends up succeeding, but something is very wrong.
  • Drives 83 and 84 are old “spinners” – Maxtor spinning hard drives. The benchmark reveals that hard drives are faster at their front and show successively slower performance as we move to the end of the drive. This is due to the inner tracks having a smaller circumference and therefore storing fewer bits.
  • The other remarkably interesting thing to observe is the 25% region of the last drive, it's a brand new, never used, 2TB Seagate Barracuda that was taken out of its factory sealed bag and plugged in for the first time for this benchmark. During the benchmark, you can see the progress bar hiccup in the 25% region. Something is wrong there, and this brand new drive has never been used!










This download is for the Windows version.
This is the file most users will want. It's an easy-to-run Windows program that will prepare any USB stick (of at least 4 megabytes) for booting BIOS-based machines to DOS and running the DOS ReadSpeed benchmark.

All other download assets are below:



DOS:
readspeed-dos.zip
Anyone who already has a bootable DOS environment can simply add the ReadSpeed DOS executable – RS.EXE – and run the program like any DOS utility.

Linux/MacOS:
readspeed-img.zip
Linux and macOS users, who do not have access to Windows, may download the ReadSpeed IMG file. After unzipping, the Linux 'dd' command, or other image writing utility, can be used to write the filesystem image to any USB stick to create a bootable 8MB DOS filesystem



Click here to visit the author's website.
Continue below to download this file.


Downloads Views Developer Last Update Version Size Type Rank
182 311 Gibson Research Corporation <img src="https://www.oldergeeks.com/downloads/gallery/thumbs/ReadSpeed1_th.png"border="0"> Apr 15, 2022 - 11:38 ReadSpeed v1.0.7664.1 382.5KB EXE 5/5, out of 5 Votes.
File Tags
ReadSpeed  v1.0.7664.1  
      
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