New Post: Stress test of XSSF proves exponential time (performance concerns)

Hi All,

I'm glad to say that the performance is greatly improved after changing the way of implementing GetLastKey()

Start time: 2013/11/24 21:47:55
[00:00:00.0439453] 0 rows written
[00:00:00.1054687] 10000 rows written
[00:00:00.1826171] 20000 rows written
[00:00:00.2646484] 30000 rows written
[00:00:00.3271484] 40000 rows written
[00:00:00.4130859] 50000 rows written
[00:00:00.4892578] 60000 rows written
[00:00:00.5498046] 70000 rows written
[00:00:00.6513671] 80000 rows written
[00:00:00.7246093] 90000 rows written
[00:00:00.8037109] 100000 rows written

Here is the result with your program. Don't be surprised :)

This fix will be included in NPOI 2.0 beta 2.