Displaying 2 results from an estimated 2 matches for "135829".
1999 Jun 04
1
dealing with large objects -- memory wasting ?
...st=ls()); gc()
free total
Ncells 135837 250000
Vcells 747306 786432
------
> n <- 10000; p <- 20; X <- matrix(rnorm(n*p), n,p); gc()
Garbage collection [nr. 23]...
135839 cons cells free (54%)
4275 Kbytes of heap free (69%)
free total
Ncells 135829 250000
Vcells 547299 786432
------
which is roughly 200000 less than before;
i.e. Vcells are 8-byte sized,
1 Vcell = 1 double or 2 integers
Since we have 747 thousands of them ,
constructing X the double size (400'000) shouldn't be a problem ...
> rm(X); n...
2009 Feb 10
4
Smooth mailbox to maildir migration
Hi all,
I have a postfix+procmail+dovecot installation, now running basicaly
on pop3 hence mailbox format, with few thousand users and less than
twenty gigabytes mail.
I need to move all of them to maildir, to take advantage of IMAP
subfolders that do not work with mbox format (so I'm told :).
Of course I cannot safely stop the service for more than a bunch of
seconds...
What I'm about