Well, I just ran a very naive test and it suggests that zpt may be about twice as slow as dtml.
I made a DTML Method, and a ZPT, identical to each other, containing only HTML: <html> Test </html> Then I ran the ab benchmarking tool against each method, thus: # ab -n 500 http://localhost:8005/zpt_test/dtml The results are reproduced below, along with the profiling information (sorry if it wraps badly) seb ------------ 1. DTML Method HTML transferred: 10000 bytes Requests per second: 88.15 [#/sec] (mean) Time per request: 11.34 [ms] (mean) Time per request: 11.34 [ms] (mean, across all concurrent requests) Transfer rate: 21.16 [Kbytes/sec] received ncalls tottime percall cumtime percall filename:lineno(function) 501 0.090 0.000 5.580 0.011 profile:0() 501 0.050 0.000 5.490 0.011 Publish.py:367(pm) 501 0.020 0.000 5.440 0.011 Publish.py:206(publish_module) 501 0.200 0.000 5.420 0.011 Publish.py:122(publish) 501 0.730 0.001 2.230 0.004 BaseRequest.py:231(traverse) 501 0.200 0.000 1.480 0.003 mapply.py:104(mapply) 501 0.050 0.000 0.990 0.002 Publish.py:111(call_object) 500 0.170 0.000 0.930 0.002 DTMLMethod.py:168(__call__) 500 0.310 0.001 0.640 0.001 DT_String.py:434(__call__) 501 0.020 0.000 0.560 0.001 BaseResponse.py:125(outputBody) 501 0.100 0.000 0.430 0.001 __init__.py:247(recordMetaData) ------------- 2. ZPT HTML transferred: 10500 bytes Requests per second: 47.65 [#/sec] (mean) Time per request: 20.99 [ms] (mean) Time per request: 20.99 [ms] (mean, across all concurrent requests) Transfer rate: 11.48 [Kbytes/sec] received ncalls tottime percall cumtime percall filename:lineno(function) 505 0.130 0.000 13.120 0.026 profile:0() 505 0.020 0.000 12.990 0.026 Publish.py:367(pm) 505 0.080 0.000 12.970 0.026 Publish.py:206(publish_module) 505 0.310 0.001 12.220 0.024 Publish.py:122(publish) 505 0.050 0.000 8.370 0.017 mapply.py:104(mapply) 505 0.010 0.000 8.320 0.016 Publish.py:111(call_object) 505 0.040 0.000 8.310 0.016 Bindings.py:322(__call__) 505 0.050 0.000 8.270 0.016 Bindings.py:342(_bindAndExec) 500 0.220 0.000 8.140 0.016 ZopePageTemplate.py:238(_exec) 500 0.110 0.000 7.810 0.016 PageTemplate.py:143(pt_render) _______________________________________________ Zope-Dev maillist - [EMAIL PROTECTED] http://lists.zope.org/mailman/listinfo/zope-dev ** No cross posts or HTML encoding! ** (Related lists - http://lists.zope.org/mailman/listinfo/zope-announce http://lists.zope.org/mailman/listinfo/zope )