No, I don’t mean Gandalf, I mean the software kind. And before I’m accused of being Gates’ live-in cabana boy (it’s all baseless rumors), let me clarify.
(Very) Preliminary Windows Server 2008 impressions and Vista Multimedia Performance under battery power
Out of curiosity, I very briefly tried the new Server 2008 Release Candidate (freely available from Microsoft). I’ve been using Vista 64-bit since I need to see all the memory in my machine and, while it works mostly OK, there are some low-level scheduling issues with it – for instance, sound is really choppy on battery power, no matter what I do with the power settings, so I can’t use the thing to watch a DVD or listen to music on the plane. Many others seem to be having the same issues, despite the funky Multimedia Class Scheduler nonsense that Microsoft put in the OS that makes networking slower (great info here), even though older incarnations were not suffering from media playback issues under load. And no, if I disable the Multimedia Scheduler it does NOT work better, it actually gets worse, which means that the service is there to fix some other kludge-y issue Microsoft introduced with the scheduler or something like excessive power throttling of certain devices.
WAN acceleration for remote workers
The deluge of WAN accelerators from Cisco, Riverbed, Juniper, Expand, Packeteer,Bluecoat, Silverpeak etc. etc. is proving good for datacenters. Not sure how many vendors will remain viable in a year or two, but the selection at the moment is decent.
Processor scheduling and quanta in Windows (and a bit about Unix/Linux)
One of the more exotic and exciting IT subjects is the one of processor scheduling (if you’re not excited, read on, practical stuff to be seen later in the text). Multi-tasking OSes just give the illusion that they’re doing things in parallel – in reality, the CPUs rapidly skip from task to task using various algorithms and heuristics, making one think the processes truly are running simultaneously. The choice of scheduling algorithm can be immensely important.
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Just how much is your antivirus harming your I/O?
I just got a new corporate laptop, a nice, shiny T60 (OK, it’s IBM black and therefore thoroughly incapable of reflecting on any part of the spectrum).
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Should EMC move to more multi-functional devices?
Here’s the deal: EMC has a lot of cool stuff. Lots of it came through acquisitions. Lots of it runs on the x86 platform, believe it or not.
At the moment one needs to buy multiple boxes from EMC to do NAS, SAN, archiving, etc.
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I wonder when dedup will make it to the arrays
Anyone feel that deduplication is not finding its final resting place in backups and WAN accelerators?
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Another windows tuning I forgot to mention
I use my laptop so much that I sometimes forget about some server-type tunings.
I resuscitated my hot-rod AMD box – it’s a grossly overclocked monster but only has 1GB RAM (since it’s hard to find that kind of fast RAM in bigger sizes, and using 4 sticks prohibits me from overclocking it so much). Let’s just say the CPU is running a full GHz faster than stock, and with air, not water or peltier coolers.
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On traveling lately
Been a while since I updated this blog. Too busy running around, evangelizing cool technologies, eating rich food, not exercising and spending WAY too much time in airports delayed due to bad weather. Someone needs to either:
On windows filesystem tuning and funky cache mechanisms
Edited: I just realized I must have used different postmark settings for vista and XP. Do NOT use the following numbers to compare Vista to XP performance.
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