I’ve been looking for this over and over and over, until I had some inspiration today (thanks to Andew and Chris) .. this has one and only one sole purpose: safekeeping, so I don’t end up searching for it all over again …
To free pagecache:
# sync; echo 1 > /proc/sys/vm/drop_caches
To free dentries and inodes:
# sync; echo 2 > /proc/sys/vm/drop_caches
To free pagecache, dentries and inodes:
# sync; echo 3 > /proc/sys/vm/drop_caches
Once that is done, you’ll see the memory (usually RAM) freeing up.
Life
disk cache, proc, safekeeping
After blogging the last time about the PacketPro 450 LoadBalancer appliance, the guys over at teamix seem to have taken that to heart and implemented a rather nifty thing for their new release.
It’s called “Port forwarding“, which is basically what you’d figure from the name. It bounces ports around the load balancer, but saves you from creating a separate virtual server (and adding the physical servers to that one), but also saves you from modifying the syslog-ng configuration on the balanced servers.
Life
Load Balancing, PacketPro, Teamix, Work
Well, as for replacing my current fileserver (which I seriously need to consider replacing), I’ll just pick up these things:
- 3WARE 9550SXU-8LP (that’s 399,00€) plus riser card
- VIA EPIA EK 8000EG (that’s 201,69€)
- Kingston ValueRAM DIMM 1 GB DDR-400 (that’s 57,00€)
- 4x Seagate ST31000340NS (that’s 279,00€ each - making a subtotal of 1.116,00€)
So after browsing some more for a replacement for my current fileserver, I’d like to share the latest stages with you people. Thanks to Mike (who mentioned that binutils-2.18* already does the LDFLAGS=”-Wl,-z,relro” part) I replaced it with “-Wl,-O1″. Same old place, there’s fresh stages … (and thanks again to Mike, with working util-linux-2.13-r2).
I also tried getting a Gentoo/Hardened stage for PowerPC working, but that fails as due to >glibc-2.3 needing =gcc-4*. Though luck ….
Oh, yeah. If anyone is looking for the specs, they are in my overlay.
Life
EPIA, Gentoo/Embedded, Gentoo/Hardened, PowerPC, RAID, Stage tarballs, uClibc