sorry in advance for the lack of analysis on this, but here are some raw
data from the heap.
this is the heap after initial startup, at the first archive interval.
note the total size.
2016-12-18 20:52:44 heap:
Partition of a set of 85482 objects. Total size = 10696752 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 42576 50 3643128 34 3643128 34 str
1 19582 23 1705192 16 5348320 50 tuple
2 686 1 800336 7 6148656 57 dict (no owner)
3 5294 6 677632 6 6826288 64 types.CodeType
4 212 0 651488 6 7477776 70 dict of module
5 5156 6 618720 6 8096496 76 function
6 669 1 601032 6 8697528 81 type
7 669 1 590520 6 9288048 87 dict of type
8 217 0 228184 2 9516232 89 dict of class
9 946 1 128976 1 9645208 90 list
<233 more rows. Type e.g. '_.more' to view.>
what follows are the *differences* in the heap at each subsequent archive
interval. these should be heap differences - the service does a
setrelheap() after it prints the heap. after the initial hiccup of almost
13M, it looks like there is about 124K of memory added to the heap on each
archive interval. most of that is in dicts of weewx.accum.ScalarStats.
2016-12-18 20:55:18 heap:
Partition of a set of 885 objects. Total size = 278816 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 166 19 173968 62 173968 62 dict of weewx.accum.ScalarStats
1 11 1 59912 21 233880 84 dict (no owner)
2 166 19 10624 4 244504 88 weewx.accum.ScalarStats
3 377 43 9048 3 253552 91 float
4 2 0 6736 2 260288 93 weewx.accum.Accum
5 6 1 2840 1 263128 94 types.FrameType
6 16 2 2240 1 265368 95 list
7 2 0 2096 1 267464 96 dict of weewx.accum.VecStats
8 26 3 1944 1 269408 97 str
9 59 7 1416 1 270824 97 int
<30 more rows. Type e.g. '_.more' to view.>
2016-12-18 21:00:18 heap:
Partition of a set of 37635 objects. Total size = 12959656 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 5122 14 8857632 68 8857632 68 unicode
1 12042 32 1297376 10 10155008 78 str
2 489 1 512472 4 10667480 82 dict of
Cheetah.Compiler.MethodCompiler
3 4419 12 455704 4 11123184 86 list
4 4145 11 398176 3 11521360 89 tuple
5 665 2 366680 3 11888040 92 dict (no owner)
6 6485 17 155640 1 12043680 93 int
7 41 0 112088 1 12155768 94 dict of module
8 862 2 110336 1 12266104 95 types.CodeType
9 872 2 104640 1 12370744 95 function
<69 more rows. Type e.g. '_.more' to view.>
2016-12-18 21:05:18 heap:
Partition of a set of 635 objects. Total size = 123864 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 83 13 86984 70 86984 70 dict of weewx.accum.ScalarStats
1 365 57 8760 7 95744 77 float
2 4 1 7264 6 103008 83 dict (no owner)
3 83 13 5312 4 108320 87 weewx.accum.ScalarStats
4 1 0 3368 3 111688 90 weewx.accum.Accum
5 6 1 3176 3 114864 93 types.FrameType
6 4 1 1120 1 115984 94 dict of threading._Condition
7 46 7 1104 1 117088 95 int
8 1 0 1048 1 118136 95 dict of
user.forecast.ForecastThread
9 1 0 1048 1 119184 96 dict of weewx.accum.VecStats
<17 more rows. Type e.g. '_.more' to view.>
2016-12-18 21:10:18 heap:
Partition of a set of 633 objects. Total size = 123528 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 83 13 86984 70 86984 70 dict of weewx.accum.ScalarStats
1 363 57 8712 7 95696 77 float
2 4 1 7264 6 102960 83 dict (no owner)
3 83 13 5312 4 108272 88 weewx.accum.ScalarStats
4 1 0 3368 3 111640 90 weewx.accum.Accum
5 6 1 2888 2 114528 93 types.FrameType
6 4 1 1120 1 115648 94 dict of threading._Condition
7 46 7 1104 1 116752 95 int
8 1 0 1048 1 117800 95 dict of
user.forecast.ForecastThread
9 1 0 1048 1 118848 96 dict of weewx.accum.VecStats
<17 more rows. Type e.g. '_.more' to view.>
2016-12-18 21:15:18 heap:
Partition of a set of 667 objects. Total size = 127416 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 83 12 86984 68 86984 68 dict of weewx.accum.ScalarStats
1 372 56 8928 7 95912 75 float
2 5 1 7544 6 103456 81 dict (no owner)
3 83 12 5312 4 108768 85 weewx.accum.ScalarStats
4 1 0 3368 3 112136 88 weewx.accum.Accum
5 6 1 3328 3 115464 91 types.FrameType
6 2 0 2096 2 117560 92 dict of
user.forecast.ForecastThread
7 6 1 1680 1 119240 94 dict of threading._Condition
8 51 8 1224 1 120464 95 int
9 1 0 1048 1 121512 95 dict of weewx.accum.VecStats
<17 more rows. Type e.g. '_.more' to view.>
2016-12-18 21:20:18 heap:
Partition of a set of 648 objects. Total size = 124472 bytes.
Index Count % Size % Cumulative % Kind (class / dict of class)
0 83 13 86984 70 86984 70 dict of weewx.accum.ScalarStats
1 369 57 8856 7 95840 77 float
2 4 1 7264 6 103104 83 dict (no owner)
3 83 13 5312 4 108416 87 weewx.accum.ScalarStats
4 1 0 3368 3 111784 90 weewx.accum.Accum
5 6 1 2920 2 114704 92 types.FrameType
6 48 7 1152 1 115856 93 int
7 4 1 1120 1 116976 94 dict of threading._Condition
8 1 0 1048 1 118024 95 dict of
user.forecast.ForecastThread
9 1 0 1048 1 119072 96 dict of weewx.accum.VecStats
<18 more rows. Type e.g. '_.more' to view.>
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