Which projects are most important?

Hello,

    I am aware of several important problems that I can help with:

1. Removing of store_table global and moving non-shared memory cache
into its own class. It would be nice to do that before we add support
for shared caching of large objects (#2) so that the new code can be
isolated to shared caching areas only. However, other than new bugs,
this project alone will not result in changes immediately visible to users.

2. Support for shared caching of large objects in memory and Rock store.
Currently, the shared memory caching limit is hard-coded to 32KB and
Rock Store maximum is configurable.

3. Triage bug reports related to slow loading of Rock store at startup
and fix the problem, if any. Rock store loads cache index in disker, not
worker processes, so the performance impact should be minimal, but
perhaps something still needs fixing or optimizing.

4. Research and possibly optimize IPC exchanges between Squid kids. I
suspect busy (but not overloaded) Squids suffer from overheads related
to creating new UDS sockets. If that suspicion is confirmed, we may be
able to noticeably improve performance by keeping UDS sockets
persistent. This project may also have a positive impact on how Squid
kids locate each other during startup and kids restarts.

5. Work with Kinkie to complete the performance regression investigation
and finalize performance regression testing procedures going forward.
Kinkie made great progress, but several critical (and hardest to get)
data points are still missing. Doing general optimizations such as
StringNG or IPv6 without a good performance testing framework would be
rather foolish.

6. Fix libipc/libmgr linking problems.

7. StringNG.

8. IP::Address optimization/polishing to address a known performance
regression added by IPv6 support.

In your opinion, what are the two or three projects I should focus on
first? Please feel free to add new items if I missed something
important. I will try to pick one from your prioritized list.

Thank you,

Alex.
Received on Wed Feb 15 2012 - 17:42:39 MST