On Thu, 9 Mar 2017, Leonard den Ottolander wrote: > So if we really want to support lets say users having directories of > 128k files we can now safely set MAX_ARG_STRINGS to 131072 and assuming > an average file name length of 32 set MAX_ARG_STRSLEN to 4194304. I think 128k files is too small. E.g. I have nearly 4 million archived emails here, and I'm sure many people have many more than that, and it's common to store emails one per file in a large directory (although I'm not storing them like that), and I think normal command-line tools ought to be able to take all the files in such a directory on the command line at once. I think it's best not to limit the number of arguments beyond the limit implied by argc being an int, and no individual object (e.g. the argv array) taking up half or more of the address space, along possibly with a limit on the proportion of the whole address space taken up by (command-line arguments + environment variables + all the pointers to those). -- Joseph S. Myers joseph@xxxxxxxxxxxxxxxx -- To unsubscribe from this list: send the line "unsubscribe linux-api" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
