search for: seeky

Hello, This patch fixes a problem where we end up seeking too much when *last_ptr is valid. This happens because btrfs_lookup_first_block_group only returns a block group that starts on or after the given search start, so if the search_start is in the middle of a block group it will return the block group after the given search_start, which is suboptimal. This patch fixes that by doing a

CFQ considers it seeky (*), BFQ doesn't. As a side effect BFQ does not always dispatch enough requests to correctly detect tagging. At the first seek you cannot tell if the process is going to bee seeky or not, and we have chosen to consider it sequential because it improved fairness in some sequential workloads (t...

CFQ considers it seeky (*), BFQ doesn't. As a side effect BFQ does not always dispatch enough requests to correctly detect tagging. At the first seek you cannot tell if the process is going to bee seeky or not, and we have chosen to consider it sequential because it improved fairness in some sequential workloads (t...

Hullo! First mail, sorry if this is the wrong place for this kind of question. I realise this is a "piece of string" type question. tl;dr version: I have a resizefs shrinking an ext4 filesystem from ~4TB to ~3TB and it's been running for ~2 days. Is this normal? Strace shows lots of:- lseek(3, 42978250752, SEEK_SET) = 42978250752 read(3,

...he multi-device code to make the minor mods required to compile on 2.6.25, fix some problematic bugs and do more tuning. v0.13 has no disk format changes since v0.12. The most important fix is for file data checksumming errors. These might show up on .o files from compiles or other files where seeky writes were done internally to fill it up. The end result was a bunch of zeros in the file where people expected their data to be. Thanks to Yan Zheng for tracking it down. GregKH provided most of the 2.6.25 port with some sysfs updates. Since the sysfs files are not used much and Greg has...

...plier + 2 direct to hard drive ). http://www.norcotek.com/item_detail.php?categoryid=8&modelno=DS-1220 The SC-SATA12RM is rackmountable, uses 4 multi-lane SAS connectors and holds 12 drives. Having full bandwidth to each drive can have its advantages for streaming reads and writes, but the seeky workload I expect won't benefit much from the extra theoretical bandwidth. In order to save on sata controller port usage, I'd probably have to get a few port multipliers. http://www.pc-pitstop.com/sata_enclosures/scsata12rm.asp The SC-SAT10PM holds 10 drives, uses two port multiplier...

Hello everyone, Btrfs v0.16 is available for download, please see http://btrfs.wiki.kernel.org/ for download links and project information. v0.16 has a shiny new disk format, and is not compatible with filesystems created by older Btrfs releases. But, it should be the fastest Btrfs yet, with a wide variety of scalability fixes and new features. There were quite a few contributors this time

i posted on rhel list about proper creating of 6tb ext3 filesystem and tuning here.......http://www.redhat.com/archives/nahant-list/2006-November/msg00239.html i am reading lots of ext3 links like...... http://www.redhat.com/support/wpapers/redhat/ext3/ http://lists.centos.org/pipermail/centos/2005-September/052533.html http://batleth.sapienti-sat.org/projects/FAQs/ext3-faq.html ............but