1.使用HttpUrlConnection能有几个
测试机器版本是5.1.1
| 个数 | 网络连接是否报错 | 写文件是否报错 |
| 1024 |
A/art: art/runtime/indirect_reference_table.cc:77] Check failed: table_mem_map_.get() != nullptr ashmem_create_region failed for 'indirect ref table': Too many open files |
Check failed: table_mem_map_.get() != nullptr ashmem_create_region failed for 'indirect ref table': Too many open files |
| 512 |
A/art: art/runtime/indirect_reference_table.cc:77] Check failed: table_mem_map_.get() != nullptr ashmem_create_region failed for 'indirect ref table': Too many open files |
E/NativeCrypto: AppData::create pipe(2) failed: Too many open files |
| 360 | 看网络环境，有时报错 |
E/NativeCrypto: AppData::create pipe(2) failed: Too many open files |
| 256 | ok | ok |
2.使用okhttp有几个
同一个 url最大 5个连接
一个client最多64个网络连接
3.使用volley有几个
在RequestQueue.java中
1 /** 2 * The set of all requests currently being processed by this RequestQueue. A Request 3 * will be in this set if it is waiting in any queue or currently being processed by 4 * any dispatcher. 5 */ 6 private final Set<Request<?>> mCurrentRequests = new HashSet<Request<?>>();
用的HashSet,在它的构造函数注释中有:默认容量是16,装载因子是0.75.
1 /** 2 * Constructs a new, empty set; the backing <tt>HashMap</tt> instance has 3 * default initial capacity (16) and load factor (0.75). 4 */ 5 public HashSet() { 6 map = new HashMap<>(); 7 }