Details
Major Description
Porting from MINA 1.1 to 2.0M2, one of my tests pinpointed a huge drop in the performance of a CumulativeProtocolDecoder-based codec when transmitting large (>2MB) messages. Under MINA 1.1.x, the transfer was effectively immediate, under 2.0M2 the system seems to get bogged down and calls the doDecode () method in 1-second intervals, with slowly-increasing amounts of data. The system is fast quad-core system, lightly unloaded. Almost no CPU usage is recorded when running either test.
The two attached ZIP files have test cases against 1.1 and 2.0M2 that reproduce this. Their trace outputs follow: the MINA 1.1 case terminates in under a second, the 2.0 case times out and fails after 5 seconds.
MINA 1.1
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time = 14:04:00.934
remaining = 1024
limit = 1024
capacity = 1024
time = 14:04:00.946
remaining = 3072
limit = 3072
capacity = 4194304
time = 14:04:00.947
remaining = 7168
limit = 7168
capacity = 4194304
time = 14:04:00.947
remaining = 15360
limit = 15360
capacity = 4194304
time = 14:04:00.947
remaining = 31744
limit = 31744
capacity = 4194304
time = 14:04:00.947
remaining = 64512
limit = 64512
capacity = 4194304
time = 14:04:00.948
remaining = 130048
limit = 130048
capacity = 4194304
time = 14:04:00.948
remaining = 261120
limit = 261120
capacity = 4194304
time = 14:04:00.949
remaining = 523264
limit = 523264
capacity = 4194304
time = 14:04:00.951
remaining = 1047552
limit = 1047552
capacity = 4194304
time = 14:04:00.953
remaining = 1571840
limit = 1571840
capacity = 4194304
time = 14:04:00.954
remaining = 2096128
limit = 2096128
capacity = 4194304
time = 14:04:00.955
remaining = 2097156
limit = 2097156
capacity = 4194304
frame size = 2097152
2.0
----------------------------------------------------------------------
time = 14:01:59.154
remaining = 2048
limit = 2048
capacity = 2048
time = 14:01:59.175
remaining = 6144
limit = 6144
capacity = 2097156
time = 14:01:59.176
remaining = 14336
limit = 14336
capacity = 2097156
time = 14:01:59.176
remaining = 30720
limit = 30720
capacity = 2097156
time = 14:01:59.176
remaining = 63488
limit = 63488
capacity = 2097156
time = 14:01:59.177
remaining = 129024
limit = 129024
capacity = 2097156
time = 14:01:59.177
remaining = 194560
limit = 194560
capacity = 2097156
time = 14:01:59.177
remaining = 196608
limit = 196608
capacity = 2097156
time = 14:02:00.153
remaining = 262144
limit = 262144
capacity = 2097156
time = 14:02:00.153
remaining = 294912
limit = 294912
capacity = 2097156
time = 14:02:01.153
remaining = 360448
limit = 360448
capacity = 2097156
time = 14:02:01.154
remaining = 393216
limit = 393216
capacity = 2097156
time = 14:02:02.154
remaining = 458752
limit = 458752
capacity = 2097156
time = 14:02:02.154
remaining = 491520
limit = 491520
capacity = 2097156
time = 14:02:03.154
remaining = 557056
limit = 557056
capacity = 2097156
time = 14:02:03.155
remaining = 589824
limit = 589824
capacity = 2097156
time = 14:02:04.154
remaining = 655360
limit = 655360
capacity = 2097156
time = 14:02:04.155
remaining = 688128
limit = 688128
capacity = 2097156