| 103 |
|
* does <em>not</em> allow {@code null} to be used as a key or value. |
| 104 |
|
* |
| 105 |
|
* <p>ConcurrentHashMapV8s support parallel operations using the {@link |
| 106 |
< |
* ForkJoinPool#commonPool}. (Task that may be used in other contexts |
| 106 |
> |
* ForkJoinPool#commonPool}. (Tasks that may be used in other contexts |
| 107 |
|
* are available in class {@link ForkJoinTasks}). These operations are |
| 108 |
|
* designed to be safely, and often sensibly, applied even with maps |
| 109 |
|
* that are being concurrently updated by other threads; for example, |
| 193 |
|
* processing are common but not guaranteed. Operations involving |
| 194 |
|
* brief functions on small maps may execute more slowly than |
| 195 |
|
* sequential loops if the underlying work to parallelize the |
| 196 |
< |
* computation is more expensive than the computation |
| 197 |
< |
* itself. Similarly, parallelization may not lead to much actual |
| 198 |
< |
* parallelism if all processors are busy performing unrelated tasks. |
| 196 |
> |
* computation is more expensive than the computation itself. |
| 197 |
> |
* Similarly, parallelization may not lead to much actual parallelism |
| 198 |
> |
* if all processors are busy performing unrelated tasks. |
| 199 |
|
* |
| 200 |
|
* <p> All arguments to all task methods must be non-null. |
| 201 |
|
* |
| 4968 |
|
baseLimit = baseSize = t.length; |
| 4969 |
|
if (t != null) { |
| 4970 |
|
long n = m.counter.sum(); |
| 4971 |
< |
int par = (pool = getPool()) == null? |
| 4971 |
> |
int par = ((pool = getPool()) == null) ? |
| 4972 |
|
ForkJoinPool.getCommonPoolParallelism() : |
| 4973 |
|
pool.getParallelism(); |
| 4974 |
|
int sp = par << 3; // slack of 8 |
