798 reputation
59
bio website aleax.it
location Sunnyvale, CA
age 59
visits member for 5 years, 3 months
seen Jun 11 '10 at 2:19

Lots of info about me is on my Google Profile and links therefrom, and some on my Python Wiki Homepage.

I spotted a recent SO-related tweet about me at Pycon. The "is a machine" bit there is not new, but I think it's the first time that comment has been elicited by observing me in real life, as opposed to reading my posts &c;-).


Dec
30
awarded  Popular Question
May
31
awarded  Yearling
May
31
awarded  Nice Answer
Aug
5
awarded  Yearling
Apr
12
awarded  Enlightened
Oct
12
awarded  Enlightened
Aug
5
awarded  Yearling
Jul
29
awarded  Nice Answer
Jul
25
answered How much memory can a 64bit machine address at a time?
Jun
7
awarded  Scholar
Jun
7
awarded  Supporter
Jun
7
accepted SSD as primary or secondary drive on a small Linux server?
Jun
7
comment SSD as primary or secondary drive on a small Linux server?
Yep, tx, that makes sense (though Ted Ts'o's essay on aligning filesystems to SSD erase blocks has made me especially wary of how LVM can behave in that respect, I guess I'll just need to experiment and benchmark to find good parameters).
Jun
6
awarded  Student
Jun
6
asked SSD as primary or secondary drive on a small Linux server?
May
22
comment Windows 7 safe mode pretends it's Windows XP?
Anyway, the 954 MB of RAM are hardly surprising: no doubt the graphics subsystem is "stealing" 70 MB or so for its own uses -- such systems (stealing system RAM for video & processing thereof) are very common.
May
9
answered Hard link not works under Mac OS X in GUI mode
Apr
27
awarded  Nice Answer
Apr
26
comment How are PID's generated?
@Jack, I guess it's just an effect of the recycling -- your kernel might be built with a small max-number of processes (on my workstation at work, I'm using a standard ubuntu hardy heron kernel and I'm regularly seeing PIDs up to 30,000 or so even though I turn the machine off every weekend).
Apr
26
comment How are PID's generated?
The kernel is in control and need not lock anything, so how could it deadlock? Yes, there is a small performance price to pay (a small extra overhead at fork time -- say a couple dozen machine instructions for a congruential PRNG or /dev/urandom read, vs many fewer for a counter-increment), but that's always the case for measures intended to improve security (check the CPU overhead of HTTPS communication vs plain HTTP for example;-).