我看到一个很奇怪的问题。本质上,有时即使有大量内存,大位图内存分配也会失败。有很多帖子似乎都在问类似的问题,但它们都与前蜂窝 Android 有关。我的理解是图像现在分配在堆上,而不是一些外部内存。无论如何,请查看下面的日志:
10-14 13:43:53.020: INFO/dalvikvm-heap(31533): Grow heap (frag case) to 40.637MB for 942134-byte allocation
10-14 13:43:53.070: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 126K, 11% free 41399K/46343K, paused 31ms
10-14 13:43:53.130: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 920K, 13% free 40478K/46343K, paused 30ms
10-14 13:43:53.180: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 1026K, 13% free 40479K/46343K, paused 30ms
10-14 13:43:53.250: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 931K, 12% free 41193K/46343K, paused 31ms
10-14 13:43:53.250: INFO/dalvikvm-heap(31533): Grow heap (frag case) to 41.313MB for 1048592-byte allocation
10-14 13:43:53.280: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed <1K, 11% free 42217K/47431K, paused 31ms
10-14 13:44:01.520: DEBUG/dalvikvm(31533): GC_CONCURRENT freed 3493K, 15% free 40646K/47431K, paused 3ms+9ms
10-14 13:44:08.130: DEBUG/dalvikvm(31533): GC_EXPLICIT freed 16461K, 47% free 25527K/47431K, paused 3ms+6ms
10-14 13:44:09.150: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 1007K, 45% free 26191K/47431K, paused 35ms
10-14 13:44:09.160: INFO/dalvikvm-heap(31533): Grow heap (frag case) to 29.334MB for 3850256-byte allocation
10-14 13:44:09.200: DEBUG/dalvikvm(31533): GC_CONCURRENT freed 0K, 37% free 29951K/47431K, paused 2ms+4ms
10-14 13:44:11.970: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 1878K, 38% free 29784K/47431K, paused 37ms
10-14 13:44:12.410: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed 62K, 36% free 30441K/47431K, paused 32ms
10-14 13:44:12.440: DEBUG/dalvikvm(31533): GC_FOR_ALLOC freed <1K, 32% free 32325K/47431K, paused 32ms
10-14 13:44:12.440: INFO/dalvikvm-heap(31533): Forcing collection of SoftReferences for 3850256-byte allocation
10-14 13:44:12.480: DEBUG/dalvikvm(31533): GC_BEFORE_OOM freed 124K, 33% free 32200K/47431K, paused 37ms
10-14 13:44:12.480: ERROR/dalvikvm-heap(31533): Out of memory on a 3850256-byte allocation.
我很抱歉包含这么多日志记录,我希望它是相关的。我的理解是系统不断地重新调整堆大小,直到最终达到堆最大值。然后,我们请求一个特别大的分配,但失败了。显然有足够的可用内存(大约 15 兆)。这是否意味着堆内部存在碎片并且没有足够大的连续内存段来处理我们的分配?如果是这样的话我该怎么办?如果不是这样,那又怎样呢?
提前致谢。