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8035057: NewSize ergonomics wrong when setting small or unaligned size on command line

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Making sure that if NewSize is set on the command line it should be used for both min and initial size even if it is re-aligned.

Reviewed-by: jwilhelm, jmasa
This commit is contained in:
Stefan Johansson 2014-02-21 09:48:52 +01:00
parent 4dde43fa62
commit 90d8f00199
1 changed files with 5 additions and 2 deletions
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7
hotspot/src/share/vm/memory/collectorPolicy.cpp
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@ -304,10 +304,13 @@ void GenCollectorPolicy::initialize_flags() {
}
// Now take the actual NewSize into account. We will silently increase NewSize
// if the user specified a smaller value.
// if the user specified a smaller or unaligned value.
smallest_new_size = MAX2(smallest_new_size, (uintx)align_size_down(NewSize, _gen_alignment));
if (smallest_new_size != NewSize) {
FLAG_SET_ERGO(uintx, NewSize, smallest_new_size);
// Do not use FLAG_SET_ERGO to update NewSize here, since this will override
// if NewSize was set on the command line or not. This information is needed
// later when setting the initial and minimum young generation size.
NewSize = smallest_new_size;
}
_initial_gen0_size = NewSize;