erik quanstrom [EMAIL PROTECTED] schrieb:
Of course, some support form the OS is needed, which excludes Plan9.
what is the basis for this claim? references?
- erik
Does Plan9 support GPT partitions now? The last time I tried Plan9 on a
GPT partitioned disk I got my disk severely screwed
Francisco J Ballesteros [EMAIL PROTECTED] schrieb:
a gpt partitioned disk should have its mbr declaring mostly the disk
in use, IIRC, plan 9 fdisk does not screw it up unless you decide
to change the partitions in the mbr.
On a GPT partitioned disk the mbr has to be ignored, as there is no way
Very amusing. However, I'm not sure what you are trying to tell us, besides
that you haven't understood what the O(...) means.
* Pietro Gagliardi ([EMAIL PROTECTED]) wrote:
Hello. I decided to teach myself the 33 libraries of Plan 9 (even
those that I partially know), and I started with
I forgot to mention one simple detail: when I said we set c to newc,
we only set sieve's copy. filter still uses the c we gave it, meaning
it reads numbers from counter the first time around.
Martin: this was just an experiment. I'm really not sure how to count
timed programs. Jon Bentley
Note that due to primes' syntax I can't time that until I know what the
205,963rd prime number is.
erm, what about
time rc -c 'primes 1 100 | sed 205963q | tail -5'
takes just over 1 second on my laptop.
* Pietro Gagliardi ([EMAIL PROTECTED]) wrote:
Martin: this was just an experiment. I'm really not sure how to count
timed programs. Jon Bentley showed me how to count simple algorithms.
I'm not so sure this is very simple at first glance.
I rest my case.
erik quanstrom [EMAIL PROTECTED] schrieb:
Of course, some support form the OS is needed, which excludes Plan9.
what is the basis for this claim? references?
- erik
Does Plan9 support GPT partitions now? The last time I tried Plan9 on a
GPT partitioned disk I got my disk severely
Yes. A protective mbr is in the specification. Protective means: Not to be
used for fiddling.
the spec says that the protective mbr should include entries reserving
the space used by gpt partitions. thus if you use fdisk to edit such
a partition table, you will not harm gpt unless you delete
- Using venti for backing up a streaming application is not a good idea.
- Contiguous storage areas may be better.
So far I agree with you.
- One potential method to provide access to contiguous
disk space may be a rich partitioning system, e.g. GPT.
I can't believe what a terrible idea
The program spawns n + 2 threads. sieve and counter are only spawned
once, but filter is spawned for every prime number.
With Roger's command line, primes took me about 91 seconds - possibly
because it isn't looking for a specific end. primes 1 2837711 takes 43
seconds.
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