20 Apr
2012
20 Apr
'12
9:45 a.m.
While I think Misters Samborski and Yorgey have fixed the performance problem, I'm still curious about the apparent synergy effect:
First example [1] just builds a HashTable of ~1 500 000 ByteStrings.
The program takes about 11 seconds to execute.
Reading data itself is not a problem, as I've measured the execution time of a program which just reads the file (and prints its last line to actually force the read, hence "handle" Haskell's laziness) and it takes no more than a second.
Coupled together reading and building, however, takes unbearably long. I didn't wait till the program stopped and just terminated it, but it had been running for ~10 minutes already.
???