Re: [htop-general] Preparing for 1.0

[Hisham <his...@gm...>]

On Fri, Nov 18, 2011 at 5:48 AM, Eugene V. Lyubimkin <ja...@de...> wrote:
> Hello Hisham,
>
> On 2011-11-18 04:19, Hisham wrote:
>> I just made a major commit to SVN, containing the latest features and
>> tweaks in preparation for htop 1.0.
>
> Nice to hear.
>
>> [...] and tries to use the native Linux sched_setaffinity function
>> instead of the hwloc library. My plan is to remove the embedded hwloc
>> library from the sources. My recommendation for distro packagers is to
>> use the native affinity support. It should work with all modern
>> kernels/glibc's out there, and it makes htop noticeably lighter.
>
> Hm, what about non-Linux ports, namely, FreeBSD?

I only officially support Linux and never tested htop on FreeBSD
myself -- having said that, users reported success with it by using
the a Linux-compatible procfs on FreeBSD, and some suggested minor
changes to htop which I was happy to apply. I don't know if affinity
controls even work today on FreeBSD. Even on PLPA/hwloc, the calls
were Linux-specific AFAIK. I've been keeping CPU affinity as an
optional feature, and yes, from a quick Google search, it looks lke
CPU affinity is disabled on FreeBSD.

hwloc is only there to cater for very old incompatible kernel/glibc
interfaces, but for now I still plan to keep it around as an optional
feature. I added proper tests for the native sched_setaffinity API in
the configure script, so, if --enable-native-affinity --disable-hwloc
builds and runs in the system, you're not losing anything by going
with that (and you get a smaller binary with less disk and memory
footprint).

-- Hisham