Author: JT Smith
not already using integrated collaborative environment solutions — such as those provided
by IBM Lotus and Microsoft, which already include embedded IM functions — Jabber is clearly a solution to consider.”
Category:
- Open Source
Author: JT Smith
Category:
Author: JT Smith
Author: JT Smith
Author: JT Smith
Author: JT Smith
Category:
Author: JT Smith
* Update the VM to Rik’s latest bits
* Merge asorted minor bugfixes
* Merge initial speakup hooks
2.4.9-ac16
o Fix VM breakage from my merge error (Rik van Riel)
o Shmem race fixs (Hugh Dickins)
o Improve scan_swap_map optimisiations (Hugh Dickins)
o Fix swapoff race (Hugh Dickins)
o Fix add to swap cache race (Hugh Dickins)
o Remove the PG_swap_cache bit (Hugh Dickins)
o Remove unused functions (Hugh Dickins)
o Remove unused argument from get_swap_page (Hugh Dickins)
o Make use of exclusive_swap_page when we can (Hugh Dickins)
o Make swap almost ready to lose BKL (Hugh Dickins)
o Add initial pieces for EXPORT_SYMBOL_GPL (me)
| kernel symbols for GPL only use
o smc-ircc module inits (Keith Owens)
o Update the hp100 driver (Jaroslav Kysela)
o Update kernel-doc for struct and enum (Tim Jansen)
o Fix mac89x0 skb->len poking (David Weinehall)
o Big chunk of MODULE_LICENSE updates (Arjan van de Ven)
o Add the tainting proc hook (Keith Owens)
o Nand flash driver build fixes (David Woodhouse)
o Fix self-parenting problems in clone properly (Dave McCracken)
o CPIA camera fix (Michael Marxmeier)
o USB serial fixes (Greg Kroah-Hartmann)
o Fix cisco hdlc protocol for isdn (Bjoern Zeeb)
o Further tunnel driver fixes (Taral)
o ISDN isar driver small fix (Karsten Keil)
o Further sscanf fixes (Paul)
o Fix iph5526 clash with ptrace namespace (Dave Jones)
o First block of block device updates from Al (Al Viro)
o Fix atm ioctl bug (Mitchel Blank)
o ISAPnP updates (Jaroslav Kysela)
o Merge IBM MWave support (Paul Schroeder)
o ISDN return value fixes (Andrew Morton)
o Add Acerscan 1240ut to the USB scanners (Morgan Collins)
o Fix init includes for aironet4500 (Keith Packard)
o Fix GART docs to reference DRI not utah (Robet Love)
o Reiserfs speed ups (Chris Mason)
o Maestro init fixups (Adam J Richter)
o Lock function cleanup (Trond Myklebust)
o Make the DRM options clearer (Keith Owens)
o Add compiler.h from 2.4.10
o Update ns83820 driver (Ben LaHaise)
2.4.9-ac15
o Rik’s next VM handling update (Rik van Riel)
o Update mousedrivers documentation (me)
o Update 53c700 drivers (James Bottomley)
o USB serial pl2303 fixes (Greg Kroah-Hartmann)
o USB serial modcount fixes (Greg Kroah-Hartmann)
o USB devfs fix for skeleton driver (Greg Kroah-Hartmann)
o Fix possible double read_unlock in personality
handling (Christoph Hellwig)
o Switch to maintainers sysrq fix (Crutcher Dunavant)
o Further pnpbios fixes (Thomas Hood)
o Delete the right ipip tunnel (Taral)
o Coda fixes (Jan Harkes)
o Fix sscanf (Paul)
o Clean up the semaphore fix (Leonid Igolnik)
o Merge minimal hooks for speakup (Kirk Reiser)
| Speakup itself needs more cleaning up yet
Category:
Author: JT Smith
Things we didn’t like included its refusal to compile power
management stuff for our notebook, the absence of telnet in the
default installation, and the weird glitch in the installer that puts the
bootloader in the wrong place. (We’re referring to the x86 version
here – LinuxPPC version doesn’t get along with the Nvidia card on
our newish G4 just yet).”
Category:
Author: JT Smith
Category:
Author: JT Smith
Today, I’m reviewing two of the latest hard drives from Maxtor, the D540X 80-gigabyte drive and 536DX 100-gigabyte drive. With Maxtor announcing its new 160GB drive, prices for drives in the range of 80 to 100 gigabytes will drop in price, making drives in this range an excellent choice for those are are in need of more space but don’t necessarily need 160 gigabytes of it. Read on to see how these two particular drives stack up.The 536DX and D540X are both 5400RPM drives. Because of that, they seem to be aimed more at the consumer market than at the workstation market, where storage speed is much more of a factor. For the average PC user, 5400 RPM drives are fine, with most of these drives used for storage of MP3s, and things of that nature. Those who need this sort of capacity for things such as video editing and other disk-intensive tasks are going to want higher speed drives.
The 80-gigabyte D540X has two platters of 40 gigabytes each that give it the 80-gigabyte capacity. The 536DX, on the other hand, has three 33-gigabyte platters that make up its 100-gigabyte capacity. The 536DX, which is being succeeded by Maxtor’s new D540X Ultra 133 line of drives, will only be available until October 31st.
When I reviewed the Seagate Barracuda ATA IV, I discussed Seagate’s various technologies aimed at a quieter, more reliable drive. Maxtor certainly wasn’t going to rest on its heals, as it is now using its own Silent Store technology. These drives are as unobtrusive as the Barracuda IV. Maxtor is also using what it calls Quiet Drive Technology in newer models, which is the same type of Fluid Dynamic Bearing motor used in the Barracuda IV. Such developments are most welcomed by people like myself, who value quiet computers.
Performance
System Configuration
Athlon 1.4GHz
256 Megabytes DDR RAM from Crucial
Gigabyte 7DXR motherboard
Slackware 8.0
Kernel 2.4.9
Filesystem used is ReiserFS
bonnie++ results
Bonnie++ is a hard drive benchmark that tests the writing and reading
from both a single large file (such as that of a database) and many files (like a proxy, or mail program). It is
useful for simulating performance under such applications. Bonnie++ was run
| Drive | Per-Character | Block | Rewrite |
| 536DX | 12468 K/sec, 77% CPU | 14587 K/sec, 9% CPU | 7345K/sec, 04% CPU |
| D540X | 15835 K/sec, 99% CPU | 36753 K/sec, 23% CPU | 9901K/sec, 05% CPU |
| Barracuda IV | 15883 K/sec, 98% CPU | 46820 K/sec, 30% CPU | 10171K/sec, 06% CPU |
| Drive | Per-Character | Block | Random |
| 536DX | 12818 K/sec, 70% CPU | 29723 K/sec, 11% CPU | 155.7 Seeks/sec, 0% CPU |
| D540X | 10032 K/sec, 54% CPU | 32319 K/sec, 12% CPU | 162.8 Seeks/sec, 0% CPU |
| Barracuda IV | 10622 K/sec, 58% CPU | 40949 K/sec, 15% CPU | 210.9 Seeks/sec, 0% CPU |
| Drive | Create | Read | Delete |
| 536DX | 21025 /sec, 100% CPU | none | 25278/sec, 98% CPU |
| D540X | 20000 /sec, 92% CPU | none | 26391/sec, 99% CPU |
| Barracuda IV | 21993 /sec, 99% CPU | none | 26431/sec, 100% CPU |
| Drive | Create | Read | Delete |
| 536DX | 20198 /sec, 99% CPU | none | 20394/sec, 99% CPU |
| D540X | 20896 /sec, 100% CPU | none | 21217/sec, 101% CPU |
| Barracuda IV | 16810 /sec, 84% CPU | none | 20601/sec, 100% CPU |
You can see here that for the most part, these drives can keep up with the Barracuda IV from Seagate, with the exception of a few key places, namely seeks per second and block transfers. Overall, the bonnie performance of both the D540X and the 536DX is very good for drives of their class.
hdparm results
The hdparm tests give you the raw throughput of the device — essentially, the best you can possibly hope for. Uncached is
the buffered speed of the disk, without the use of the operating system cache. Cached results test the perform of the RAM
and CPU more than they test the drive itself.
Results |
|
| 536DX | 29.36 MB/sec |
| D540X | 32.16 MB/sec |
| ST380020A | 37.43 MB/sec |
Results |
|
| 536DX | 206.45 MB/sec |
| D540X | 203.17 MB/sec |
| Barracuda IV | 181.51 MB/sec |
Here we find that the 5400-RPM drives do lag quite a bit behind the 7200-RPM Barracuda, by about eight megabytes per second. We also see how varied cached results can be, once again pointing out that cached drive results really only reflect memory and CPU performance, and can vary due to the slightest factor. While both of the Maxtor drives lag behind a 7200-RPM drive, they do very well for 5400-RPM drives. I’d go as far as to say that the speed on these is excellent for drives of their size and type. I would think the average PC user would be fine with the performance either of these drives.
Conclusion
If you are looking for a lot of capacity, with decent performance and a low price, you should seriously consider these two drives from Maxtor. Both offer capacity and performance to satisfy most Linux users. Just think of all the different distributions you could fit into 100 gigabytes. Or all the MP3s and other such things you could use to fill even the biggest drives. The 80-gigabyte D540X is available for $174 on Pricewatch, while the 536DX can be found there for around $240.
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Author: JT Smith
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