** Description changed:
+ There is already zram-config in Ubuntu, a package to enable compressed
+ RAM swap: https://launchpad.net/ubuntu/+source/zram-config
+
+ Starting with kernel 3.8 zram (a rewrite of older compcache) is out of
+ staging. Please enable it by default.
+
+ === Original description ===
+
Including compcache by default can have a number of benefits for the
average, and not so average, Ubuntu user.
For the average user, compcache will decrease disk swapping, which will
increase perceived performance and decrease hits, which for laptop users
will improve battery life. Since many users use laptops and netbooks
these days, this is a big audience and would make many people happy.
Desktop users will also benefit, as their disks will be less active and
their electric bills may go down a tiny bit.
For the not-so-average user, such as those that run virtualization,
they can run more VMs. With Ubuntu striving to be bigger in the server
space, this could be a big deal. For me, I (unfortunately) run Windows
in KVM, and it appears that enabling compcache improves my VM's
performance.
Embedded devices and netbooks (such as those that run Ubuntu Netbook
Remix) will benefit, as they have little RAM, and since compcache sort
of increases RAM, it will make these devices more capable.
Since compcache is already in the Ubuntu kernel (see bug 200765), the
only thing left is to either add an initramfs script or a udev script
(IMHO, the udev approach is cleaner) as described here:
https://wiki.ubuntu.com/Compcache
compcache: http://code.google.com/p/compcache/
Thanks!
** Also affects: zram-config (Ubuntu)
Importance: Undecided
Status: New
** Summary changed:
- use compcache by default
+ use zram-config by default
** Description changed:
There is already zram-config in Ubuntu, a package to enable compressed
RAM swap: https://launchpad.net/ubuntu/+source/zram-config
Starting with kernel 3.8 zram (a rewrite of older compcache) is out of
staging. Please enable it by default.
+
+ See also:
+ http://www.webupd8.org//2011/10/increased-performance-in-linux-with.html
+ https://launchpad.net/~shnatsel/+archive/zram
=== Original description ===
Including compcache by default can have a number of benefits for the
average, and not so average, Ubuntu user.
For the average user, compcache will decrease disk swapping, which will
increase perceived performance and decrease hits, which for laptop users
will improve battery life. Since many users use laptops and netbooks
these days, this is a big audience and would make many people happy.
Desktop users will also benefit, as their disks will be less active and
their electric bills may go down a tiny bit.
For the not-so-average user, such as those that run virtualization,
they can run more VMs. With Ubuntu striving to be bigger in the server
space, this could be a big deal. For me, I (unfortunately) run Windows
in KVM, and it appears that enabling compcache improves my VM's
performance.
Embedded devices and netbooks (such as those that run Ubuntu Netbook
Remix) will benefit, as they have little RAM, and since compcache sort
of increases RAM, it will make these devices more capable.
Since compcache is already in the Ubuntu kernel (see bug 200765), the
only thing left is to either add an initramfs script or a udev script
(IMHO, the udev approach is cleaner) as described here:
https://wiki.ubuntu.com/Compcache
compcache: http://code.google.com/p/compcache/
Thanks!
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https://bugs.launchpad.net/bugs/381059
Title:
use zram-config by default
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