The Active Block I/O Scheduling System (ABISS) is an extension of the hard-disk storage subsystem of Linux, whose main purpose is to provide a guaranteed reading and (eventually) writing bit rate to applications.
ABISS is conducted by Philips Research in Eindhoven, the Netherlands (see http://www.research.philips.com/technologies/storage/index.html). http://abiss.sourceforge.net/abiss-8.tar.gz md5sum 74199f051c4ef31e38561c695c549813 sha1sum 0f5f04593eb998a41e5184ede503dfffee8d8a9d This is an important maintenance release, which fixes a bug that could cause file system corruption. The highlights: - if ABISS couldn't keep up while writing, pages could be marked for delayed allocation while locked, badly confusing the rest of the kernel - rdrt ("ReaD Real-Time") is now called rwrt ("Read/Write Real-Time") - rwrt can now invoked without the read/write size argument, which is convenient if we just want to verify sequence numbers - communication with abissd used to fail if the file being opened was badly fragmented (such that the list of fragments was too large to send). Now, the message size is adjusted dynamically, allowing for much larger messages. - added an experimental mechanism for making FAT make contiguous allocations larger than one cluster. This is activated with the mount option space=N where N is the number of kilobytes we want to allocate contiguously. (E.g. if writing two 1MB files in parallel on a file system with a cluster size of 4 kB, you'd get about 256 fragments in each. With space=64, there would be only 16 fragments.) For additional information, please have a look at http://abiss.sourceforge.net/ - Werner -- _________________________________________________________________________ / Werner Almesberger, Buenos Aires, Argentina [EMAIL PROTECTED] / /_http://www.almesberger.net/____________________________________________/ - To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
