Does QNX support a swap file?
No. There are some plans for implementing this sometime in the future, but don’t expect to see it any time soon, or even at all. There are other features that will be added to QNX well before a swap file is added. The main reason for this is that reasons for requiring realtime response/performance typically conflict with the reasons for requiring a swap file. The requirement for swapping in most QNX applications is quite low. The efficiency of the OS and Watcom compiler provide relatively small processes in terms of memory requirements. When this is combined with the ability to share code between multiple process invocations and shared libraries, the memory demands for QNX are quite moderate. 45) Does QNX support virtual memory? Yes. Don’t confuse this with a swap file though. Virtual memory only refers to the mapping of real physical memory through a MMU. QNX operates in the protected mode of the Intel processors, and makes use of LDT and GDT selectors to provide memory mapping to phy
