3 Commits

Author	SHA1	Message	Date
Robert Nystrom	35da19ac07	Migrate standalone_2 to null safety. ... Change-Id: I0e97add738bc79314a210cf137525b7391467fc2 Reviewed-on: https://dart-review.googlesource.com/c/sdk/+/152595 Reviewed-by: Siva Annamalai <asiva@google.com> Commit-Queue: Bob Nystrom <rnystrom@google.com> Auto-Submit: Bob Nystrom <rnystrom@google.com>	2020-06-26 19:17:50 +00:00
Siva Annamalai	f1689b6eb0	Migrate first block of tests in standalone to standalone_2 ... R=bkonyi@google.com Review-Url: https://codereview.chromium.org/2984363004 .	2017-08-01 09:05:01 -07:00
Erik Corry	37b320d381	Avoid scanning huge freelists for large enough free blocks. ... The current old-space allocation implementation performs a linear search in a single (potentially *very long*) free list for allocations > 2k. This CL will change this behavior to limit the number of free list entries traversed, falling back to allocate a new page if the maximum number of steps was reached. The new page will be pushed onto the front of the free list, therefore making new allocations go there immediately. For the new tests/standalone/fragmentation_test.dart we - pay around 11-12% increase in memory - to gain a 6x speedup (125x speedup with sweepers disabled) I tried a much more complicated version that had power-of-two buckets for freelist items > 2k. This turned out to regress dart2js and splay for reasons that I could not determine. This version is much simpler and fixes the issue as observed in the bug. Closes #29588 R=kustermann@google.com Review-Url: https://codereview.chromium.org/2872883003 .	2017-05-11 09:41:50 +02:00