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Subject: Re: interest in minor contention issues?
From: Jeremy Hanna <jeremy.hanna1234@gmail.com>
In-Reply-To: <AANLkTinc1DipoCvtpT7bQoGwO_i_6R1JWQGuhenTToD3@mail.gmail.com>
Date: Fri, 6 Aug 2010 16:19:59 -0500
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To: dev@cassandra.apache.org

Are you talking about a handful of issues or a large number of issues?

If it's the former, then a Jira issue for each isn't unreasonable.  If =
it's the latter, maybe all of your results could go into one Jira issue =
with steps to reproduce your results.  Then someone could do some more =
investigation from the Cassandra community.

Either way, thank you for reaching out.

On Aug 6, 2010, at 4:01 PM, Jason Fager wrote:

> My main concern is that I'm not primarily interested in Cassandra at
> this point, I'm interested in my JDI project, and formal benchmarking
> of Cassandra on each item I find is probably more work than I want to
> put in at this time.  If there's an easy benchmark that's already
> generally agreed upon, I'll be happy to run it first, but otherwise,
> I'm basically asking if the dev group is interested in reports that
> won't reach the threshold of having a demonstrated performance impact,
> or if those kinds of reports are generally just regarded as annoying.
>=20
>=20
>=20
> On Fri, Aug 6, 2010 at 4:37 PM, Gary Dusbabek <gdusbabek@gmail.com> =
wrote:
>> I think if there is a demonstrable increase in performance or other
>> obvious wins, then you should go ahead and submit jiras (and =
patches).
>>=20
>> Gary.
>>=20
>> On Fri, Aug 6, 2010 at 15:25, Jason Fager <jfager@gmail.com> wrote:
>>> Hi all,
>>>=20
>>> I'm doing some work with the Java Debugger Interface, and I'm using
>>> Cassandra as a test bed.  I've found a few minor contention spots
>>> (example: MessageDigest.getInstance() being called for every
>>> invocation of FBUtilities.hash()), but before I start possibly
>>> spamming your jira with them, I wanted to gauge the general interest
>>> in knowing these kinds of minor issues.  I'm happy to report them as
>>> they come up while I'm doing my work, but if you consider them too
>>> minor to worry about until they actually show up as impacting
>>> performance during profiling, I don't want to annoy anyone.  Let me
>>> know.
>>>=20
>>> - Jason
>>>=20
>>=20