On Jan 8, 2011, at 3:10 PM, Erik Cederstrand wrote:
> Hello Pav,
>
> Den 08/01/2011 kl. 20.34 skrev Pav Lucistnik:
>
>> Package cluster is quite clever, akshully, and since this is OT here,
>> just terse comments
>
> Sorry, replied to a bad message... redirecting to current@
>
>>>> 1. adding SSD disks
>>
>> irrelevant because of bullet 2.
>>
>>>> 2. source and destination directories on md devices
>>
>> already done, swap backed md devices are used
>>
>>>> 3. huge ccache cache
>>>> 4. dist-cc
>>
>> these tend to have their own issues
>>
>>>> 5. some heuristics on which ports could be skipped because dependencies
>>>> haven't changed since last run
>>
>> this is also already done, we call it "incremental builds"
>>
>>>> 6. tuning the host system for this specific task
>>
>> empty words
>
> I was pretty sure I couldn't improve anything with 5 minutes of thinking. I'm
> glad the most obvious things have already been done, and I'm sure you and
> others have put a lot of effort into this. My question was more what, if
> anything, can be done to speed up the cluster.
>
> Also, how long does it take to complete an exp-run on the cluster?
Erik,
As I said before, the tinderbox / exp-run infrastructure needs to be
made portable, the infrastructure needs to be there, and as extra credit (I've
stated this in other emails in the past) parallelization in ports/pkg_install
needs to be fixed as ports/packaging in FreeBSD doesn't work in an ACID[1]-like
manner. I'd rather not repeat the reasons in greater detail. Please look for my
replies to this thread on current@ for more details in "part A", and look for
my replies on ports@ for more details in "part B".
Thanks,
-Garrett
1.
http://en.wikipedia.org/wiki/ACID_______________________________________________
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