T. Horsnell wrote: > 1. Is there a way to restrict the amount of > memory consumed by the UBC? > > 2. Is there any way of mounting a filesystem > such that its data doesnt pass through > the UBC at all? There is no consumption of memory. If the buffering system was not using it the memory would just be sitting there unusued at all. All the buffer memory is ready for allocation, just requiring flush if dirty. Similarly the "substantial delay" for syncing is not real either, the total time for an (app dumping into the buffer + flushing time) should be the same as an unbuffered app dumping direct. -Andy
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