RFR: 8201647: Make initial clearing of CHeapBitMap optional (original) (raw)
Per Liden per.liden at oracle.com
Wed Apr 18 08:25:30 UTC 2018
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Thanks Thomas!
/Per
On 04/17/2018 02:58 PM, Thomas Schatzl wrote:
Hi,
On Tue, 2018-04-17 at 14:38 +0200, Per Liden wrote: CHeapBitMap objects will by default clear the underlying bitmap during construction. In ZGC we don't want mark bitmaps to be cleared on construction, since we instead do this lazily during concurrent marking.
This patch adds a "bool clear = true" argument to CHeapBitMap's constructor to be able to opt-out of this behavior. Bug: https://bugs.openjdk.java.net/browse/JDK-8201647 Webrev: http://cr.openjdk.java.net/~pliden/8201647/webrev.0 /Per looks good. Thomas
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