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我嘗試使用shmget()分配22MB的共享內存,但它與errno ENOMEM退出。頂部的輸出的第一行看起來好像有足夠的內存:shmget返回ENOMEM與12GB免費
Processes: 114 total, 4 running, 110 sleeping, 579 threads
Load Avg: 0.50, 0.42, 0.35 CPU usage: 0.24% user, 0.60% sys, 99.15% idle
SharedLibs: 17M resident, 5356K data, 0B linkedit.
MemRegions: 20375 total, 1361M resident, 59M private, 1176M shared.
PhysMem: 1487M wired, 1887M active, 576M inactive, 3950M used, 12G free.
VM: 286G vsize, 1052M framework vsize, 123007(0) pageins, 0(0) pageouts.
該程序與OS X版本10.8.5一起運行。任何想法可能是什麼原因?