When I use the preallocate patch and create a 77GB file using the function I get a CPU spike on the server-side. The spike lasts about 20 minutes and uses about 20%-25% of the cpu associated with the rsync instance creating the file. The spike is directly linked to the time it takes to create the file.
I compiled rsync using cygwin CVS. I initially suspected the implementation of posix_fallocate in cygwin. I posted the same question to their board and Corinna indicated she can create a 40GB file in a few milliseconds. I'm wondering if there is something else going on at this point. Does anyone else get this issue too? I want to confirm it isn't just a problem with my environment. I've replicated it on machines but they are all using the same cygwin build I created. It would be great to get a confirmation (positive or negative) from someone running it under Linux. The preallocate is working, it just is taking a while to create the file. Rob -- To unsubscribe or change options: https://lists.samba.org/mailman/listinfo/rsync Before posting, read: http://www.catb.org/~esr/faqs/smart-questions.html
