#26095: Same behaviour of dict.items and defaultdict.items in DTL
-------------------------------------+-------------------------------------
Reporter: kbr | Owner: kbr
Type: | Status: assigned
Cleanup/optimization |
Component: Template system | Version: master
Severity: Normal | Resolution:
Keywords: templates dict | Triage Stage:
defaultdict | Unreviewed
Has patch: 1 | Needs documentation: 1
Needs tests: 0 | Patch needs improvement: 0
Easy pickings: 0 | UI/UX: 0
-------------------------------------+-------------------------------------
Comment (by kbr):
Well, the isinstance()-call is about 4 times slower than the direct access
(d[bit] alone takes about 98 ns. (on a dict with a single entry)).
{{{
%%timeit
if isinstance(d, defaultdict):
pass
res = d[bit]
1000000 loops, best of 3: 378 ns per loop
}}}
Whether this is a real bottleneck depends how often Variable.resolve gets
called and - may be more important - other time consuming parts of the
application. Will try djangobench the next days. Thank you for the review
so far.
--
Ticket URL: <https://code.djangoproject.com/ticket/26095#comment:6>
Django <https://code.djangoproject.com/>
The Web framework for perfectionists with deadlines.
--
You received this message because you are subscribed to the Google Groups
"Django updates" group.
To unsubscribe from this group and stop receiving emails from it, send an email
to django-updates+unsubscr...@googlegroups.com.
To post to this group, send email to django-updates@googlegroups.com.
To view this discussion on the web visit
https://groups.google.com/d/msgid/django-updates/061.4cc365c6dc45c5ef3e00b029c97824cd%40djangoproject.com.
For more options, visit https://groups.google.com/d/optout.
