On 06/29/2010 06:51 AM, Dirkjan Ochtman wrote:
On Tue, Jun 29, 2010 at 15:32, Wendall Cada<[email protected]> wrote:
While doing some preliminary research on building a couchdb rpm, I
discovered that Fedora/Centos/RedHat couchdb rpms are built against
js-devel-0.70.
You mean 1.7.0?
Yes, the Fedora package negates the second dot.
As can be seen here:
$ js -v
JavaScript-C 1.7.0 2007-10-03
I am quite shocked that it is being built against something so ancient.
xulrunner-devel is at 1.9.2.4 on my fc13 workstation.
It's a known problem that no stand-alone SpiderMonkey has been
released for quite a while.
On the other hand, I don't think XULRunner versions directly relate to
SpiderMonkey versions the way you imply.
Understood.
The question is, how much of a performance hit is there using this very old
and outdated js lib?
I think tests with SpiderMonkey 1.8 weren't conclusive about the
performance benefit, so I wouldn't worry too much (but people might
correct me on this).
I agree that there isn't much difference between 1.7 and 1.8, but the
differences between 1.7 and 1.9 is quite significant. But the impact on
the couchdb performance is the primary issue. A secondary issue is the
lack of some very useful functions added in 1.8 and 1.9.
Cheers,
Dirkjan
