search for: 40ns

...oor rJava call performance > system.time(for (i in 1:1000) J("java.lang.Double")$parseDouble(as.character(i))) user system elapsed 4.884 0.000 4.900 i.e. 5 milliseconds per very simple call on a very fast cpu. JNI calls themselves are said to be pretty fast nowadays (10...40ns). It probably goes accross reflection but still doing pretty much nothing useful in 5ms is horrible benchmark. Is that expected rJava performance? Cause if it is, this means it is completely usuitable for exchanging data with Java. ( I can probably bulk up data in data frames and pass it as a sing...

...ce available. in the ftp logs. What is a safe value to prevent users from abusing the system by eating up all mbufs ? There is a local DoS if sbsize was left as unlimited. (http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=20000603234039.X17973_fw.wintelcom.net%40ns.sol.net&rnum=2&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dsbsize%2Bfreebsd%2Bdos) 32MB seems like an oddly large number for just a small ftp session. This changed sometime between Jan 21st and Feb 15th it would seem. Previously an sbzise of :sbsize=512K:\ would work...

...ce available. in the ftp logs. What is a safe value to prevent users from abusing the system by eating up all mbufs ? There is a local DoS if sbsize was left as unlimited. (http://groups.google.ca/groups?hl=en&lr=&ie=UTF-8&oe=UTF-8&threadm=20000603234039.X17973_fw.wintelcom.net%40ns.sol.net&rnum=2&prev=/groups%3Fhl%3Den%26lr%3D%26ie%3DUTF-8%26oe%3DUTF-8%26q%3Dsbsize%2Bfreebsd%2Bdos) 32MB seems like an oddly large number for just a small ftp session. This changed sometime between Jan 21st and Feb 15th it would seem. Previously an sbzise of :sbsize=512K:\ would work...