Linux memory and Slab

I found that my Slab (a kind of kernel heap) was growing up to 250Mb:

cat /proc/meminfo | grep Slab

As shown by /proc/slabinfo and slabtop, the responsible were dentry and ext3_inode_cache. I found a solution here:

echo 2 > /proc/sys/vm/drop_caches

Java: Why is the Capture of a Wildcard Incompatible with Itself?

I just link this article of Peter Ahé (member of j2se team), because I don’t understand:
http://blogs.sun.com/ahe/entry/why_is_the_capture_of.
Sometime generics are mysterious.

Language benchmark: Java vs Python

Here is a nice web site to compare languages properties: http://shootout.alioth.debian.org. But I did not found the test I was looking for: writing/reading float text stream. So I wrote mine.

Ries is down

No apt-get update since several days. Joerg Jaspert is telling us why.