Dear R developers, The slow performance of serializing to a raw vector on Windows is an issue that has appeared in this list before. It appears to be due to the frequent use of realloc from the resize_buffer method in serialize.c.
I suggest a more granular, but still incremental, re-allocation of memory. For example change near the top of resize_buffer to: R_size_t newsize = needed + 65536 - (needed % 65536); or some other similar small multiple of a typical system page size. I have found this to dramatically improve performance of serialization to raw vectors on Windows. Best, Bryan ______________________________________________ R-devel@r-project.org mailing list https://stat.ethz.ch/mailman/listinfo/r-devel
