dhess

23 ms·

181.
by dhess 17y ago
WDTLER works on the WD15EADS (1.5TB), as that's what I'm using.
182.
by dhess 17y ago
This has nothing to do with ZFS, but FYI: you can configure consumer-grade Western Digital drives to report failures immediately, rather than retrying, just like their more expensive "enterprise" counterparts. See http://en.wikipedia.org/w
183.
by dhess 17y ago
I don't think that's what you think it is. The Home Sync menu I'm familiar with is for mirroring a network home directory on your local disk, in conjunction with another machine running Mac OS X Server. As far as I know, this feature has no
184.
by dhess 17y ago
I just upgraded to 3.0 from my hotel room in Osaka and it worked fine. I put the phone into airplane mode before upgrading, but after the firmware update finished, it was out of airplane mode and communicating with the Softbank mobile netwo
185.
by dhess 17y ago
I'm slowly reading Language and Thought of the Child. The "slowly" part is my fault, not Piaget's; I think it's excellent and understandable, even if it's a bit verbose.
186.
by dhess 17y ago
No, not yet. Earlier today Apple's activation servers were down, and people got around it by disconnecting from the Internet while updating the firmware; apparently this bypasses the Internet part of the activation at least, c.f., http://t
187.
by dhess 17y ago
I'm an iPhone 3G customer in the States (AT&T), but I'm in Japan at the moment, roaming on either Softbank or NTT Docomo, depending on the particulars of my location. It's not clear to me exactly what the activation process does after a
188.
Ask HN: Interesting electronics stores in Hong Kong/Shenzhen
1 points by dhess 17y ago|0 comments
189.
by dhess 18y ago
I was fortunate enough to attend this ILC session last night. Some people here are reading way too much into what Gerry Sussman said. I don't think Lispers should castigate Gerry for MIT's decision to use Python in its new introductory EECS
190.
by dhess 18y ago
Learning to build or repair a car would probably improve your understanding of thermodynamics, aerodynamics, momentum, etc. Likewise, writing a computer program that simulates the motion of a planet around a star or renders 3D graphics migh
191.
by dhess 18y ago
I'm using Twitter to keep a record of interesting URLs, along with a couple of hashtags and a brief description. I've been trying this with Delicious for the first time, too, but so far I prefer Twitter, probably because more people use it,
192.
by dhess 18y ago
Anyone here have experience with StartCom? http://cert.startcom.org/
193.
by dhess 18y ago
Here's one: http://deptinfo.unice.fr/~roy/sicp.pdf This page has links to other formats (e.g., texinfo), the HP videos, and solutions to exercises (including my own, sadly not yet finished (but I'm working on it!)): http://wiki.drewhess.
194.
by dhess 18y ago
Two strikes. Thanks for the info.
195.
by dhess 18y ago
Too bad, they looked great. Thanks for the data point!
196.
by dhess 18y ago
I'm also looking for a UK-based virtual host for occasional proxy testing. Does anyone here have experience with http://flexiscale.com/ ? Alternatively, even a simple UK-based, non-root shell account with the ability to run Squid would pr
197.
by dhess 18y ago
Zach Beane has a nice wrapper for the asdf:operate nonsense on various CL implementations: http://xach.livejournal.com/191187.html
198.
by dhess 18y ago
Thanks for that link, I don't think I'd have seen that story if not for your submission. For the last year and a half I've been reading everything I can get my hands on that Seymour wrote. (Some of his more technical books are out of print
199.
by dhess 18y ago
Yeah, also on IA-64 (optionally). I was generalizing. Still, on IA-64 at least, you would typically pin kernel mappings by putting them in translation registers instead of translation cache registers (i.e., the TLB). I haven't kept up with
200.
by dhess 18y ago
Why would you flush the cache on a system call?? The only case I can think of where a cache flush is needed at all is if you have a virtually-addressed (or -indexed) cache and you're switching address spaces. Some ARM implementations may do
201.
by dhess 18y ago
"TLB entries need to be faulted in?" You mean TLB entries which map kernel pages? Typically kernel pages (and the TLB entries which cover them) are "pinned." You don't want to take a TLB exception in the middle of an interrupt service routi
202.
by dhess 18y ago
Sorry, you're right, "protection domain crossing" probably isn't common jargon. It's a holdover from my time as a processor architect on IA-64. It means privilege escalation. Anyway, in any common parlance of the term "context switch" I've
203.
by dhess 18y ago
No, I didn't :) All I did in my original comment was simply to point out to ajross that system calls don't always cause context switches. It's a common misconception, not unique to ajross, of course, that a protection domain crossing requir
204.
by dhess 18y ago
Yes, regardless of the mechanism that causes the disk read. Given a particular access pattern, whether the disk gets read or not is independent of the choice to use seek+read or mmap. System calls that don't block don't cause a context swit
205.
by dhess 18y ago
Typically a system call only leads to a context switch if the call will block, or if the caller has used up its timeslice; otherwise, it's just a couple of relatively cheap protection domain crossings.