K 10 svn:author V 6 dillon K 8 svn:date V 27 2000-04-26T20:36:36.000000Z K 7 svn:log V 343 MFC sequential write detection heuristic. This extends the sequential read heuristic to also cover sequential writes, causing write-behind to be used only for the sequential write case. This solves a number of performance issues with random writes to medium sized files using large block sizes, as occurs with DBM files. END