PCMark05
For these tests, we use RankDisk, an application developed and copyrighted by Intel. In our testing, we found RankDisk to be suitable for a neutral benchmark. RankDisk is used to record a trace of disk activity during usage of typical applications. These traces can then be replayed to measure the performance of disk operations for that usage.
RankDisk records disk access events using the device drivers and bypasses the file system and the operating system’s cache. This makes the measurement independent of the file system overhead or the current state of the operating system. In replaying traces, RankDisk always creates and operates on a new dummy file. This file is created in the same (or closest possible) physical location of the target hard disk. This allows the replaying of traces to be safe (does not destroy any existing files) and comparable across different systems. Due to the natural fragmentation of hard disks over time, they should be defragmented before running these tests.
The traces used for each test were created from real usage. The traces contain different amount of writing and reading on the disk; total ratio in the HDD test suite disk operations is 53% reads and 47% of writes.
The following input traces are used:
Windows XP Startup: This is the Windows XP start trace, which contains disk activities occurring at operating system start-up. The test is 90% reading and 10% writes. This trace contains no user activity.
Application Loading: This is a trace containing disk activities from loading various applications. It includes opening and closing of the following applications:
Microsoft® Word
Adobe® Acrobat® Reader 5
Windows® Media Player
3DMark®2001SE
Leadtek® Winfast® DVD
Mozilla Internet Browser
The application loading trace is 83% reads and 17% writes.
General Hard Disk Drive Usage: This trace contains disk activities from using several common applications.
These are:
Opening a Microsoft® Word document, performing grammar check, saving and closing
Compression and decompression using Winzip
Encrypting and decrypting a file using PowerCrypt
Scanning files for viruses using F-Secure® Antivirus.
Playing an MP3 file with Winamp
Playing a WAV file with Winamp
Playing a DivX video using DivX codec and Windows® Media Player
Playing a WMV video file using Windows® Media Player
Viewing pictures using Windows® Picture Viewer
Browsing the internet using Microsoft® Internet Explorer
Loading, playing and exiting a game using Ubisoft Tom Clancy’s Ghost Recon
The General Usage trace is 60% reads and 40% writes.
Virus Scanning: Virus scanning is a critical task in today’s PC usage. As the major bottleneck of scanning viruses is in hard disk activity, it is reasonable to include virus scanning as a HDD test. The test consists of HDD activity of scanning 600MB of files for viruses. The Virus Scanning test is mostly disk reading (99.5%).
File Write: This trace contains disk activities from writing 680MB files on the hard disk and no read operations are involved in this test.
PCMark trace-based testing points out that while it is a trace, it appears to be executed in a single-threaded fashion, which once again gives ioDrive the advantage in many of the tests. We see only incremental improvements with the R4, mainly because the benchmark’s engine is simply bottlenecked.
This drive is so fast, that
This drive is so fast, that it can actually change the way programmers approach problems. With a disk speed a sizable fraction of RAM, I/O stops being a bottleneck. The big users of this will probably be High Performance clusters, where 4 CPU servers (each with 8+ cores) exist. The benefit of This incredibly fast storage will do wonders for these systems.
I’m kinda guessing that CPUs will be the bottleneck for the server crowd, and tthis’ll push CPU development that much further. (Hey, I can hope!)
I really hope developers
I really hope developers won’t stop optimizing their code. Data access can’t ever be fast enough. Wherever you’re running huge databases with tons of users, you’ll be happy for every single timesaving tick.
I think the biggest
I think the biggest bottleneck for the foreseeable future is still network transfer speeds, which also puts a serious onus on programmers to optimize code as far as disk reads/writes, optimizing disk reads/writes to fill out TCP packets as much as possible and not have extraneous information sent over networks is still going to be the key to successful communication with servers. At least until new standards for network communication actually come into play.
Thank you for your effort on
Thank you for your effort on making this review , But I seriously don’t see the point , Did you really think we ( the readers ) can afford such thing ? the item you reviewed is listed at 11,200$ , with this kind of money ill have all the high end pcs for the next minimum 15 years ! Minus this SSD.