Tingle's Technology Notes
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Everyone should be using low level caching in Rails
Low level caching is very easy to get started with in Rails 3, but it seems to be missing from the official guides
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I’m proud to have been part of this project in its early stages (1999-2001), back when I was a graduate student in Boston. Kudos to Peter!
The...
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“YOUR THE DOG NOW MAN”— bennett
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Mrs. Patton and two of the over 50 cats she kept in her home, c.1915, Chicago. She was facing eviction unless she reduced the...
ps_mem.py
pip install iotop
Try to determine how much RAM is currently being used per program. Note per _program_, not per process. So for example this script will report RAM used by all httpd process together. In detail it reports: sum(private RAM for program processes) + sum(Shared RAM for program processes) The shared RAM is problematic to calculate, and this script automatically selects the most accurate method available for your kernel.
sample output — https://gist.github.com/1378510
been playing with coreutils on solaris… I guess in linux there are some new system calls that do copy on write by making duplicate inodes that point to the same blocks, and then have the copy on write built in. supported on ocfs2 and btrfs filesystems. Wish it worked with zfs on solaris…
Mike started the talk by giving the developers a good laugh: it seems that Google manages its kernel code with Perforce. He apologized for that. There is a single tree that all developers commit to. About every 17 months, Google rebases its work to a current mainline release; what follows is a long struggle to make everything work again. Once that’s done, internal “feature” releases happen about every six months.
Seen at LWN.net
Notable comment:
Posted Oct 21, 2009 5:19 UTC (Wed) by bradfitz (subscriber, #4378)
if you’re going to have a blessed “central” repo anyway, who really cares if that repo is actually git, svn, perforce, etc, as long as you can use your DVCS of choice at the edge?
The alternative is changing years of accumulated tools & checks every time a new VCS comes out and you change your master repo’s storage format.
*shrug*
