sys-block/btrace
btrace can show detailed info about what is happening on a block device io queue
Screenshots
-
btrace-1.0.3amd64 x86doc
View 
Download 
Browse License: GPL-2 Overlay: argent-main
ChangeLog
commit 1f81dc460aaa16767a8ae367561e434281305d37
Author: BlackNoxis <steven.darklight@gmail.com>
Date: Sat Feb 27 11:20:08 2016 +0200
[sys-block] added x86 support
commit 60acb4a7213b35ede4c2ccda1871466e28689b4f
Author: root <steven.darklight@gmail.com>
Date: Thu Oct 29 02:04:26 2015 +0200
Changed to the new EAPI=5 class and remanifested everything. almost.
commit 1dfc65b54a3dc2cdc985b82990b80a3628922437
Author: BlackNoxis <steven.darklight@gmail.com>
Date: Sat Dec 6 04:19:19 2014 +0200
Added sys ebuilds
Author: BlackNoxis <steven.darklight@gmail.com>
Date: Sat Feb 27 11:20:08 2016 +0200
[sys-block] added x86 support
commit 60acb4a7213b35ede4c2ccda1871466e28689b4f
Author: root <steven.darklight@gmail.com>
Date: Thu Oct 29 02:04:26 2015 +0200
Changed to the new EAPI=5 class and remanifested everything. almost.
commit 1dfc65b54a3dc2cdc985b82990b80a3628922437
Author: BlackNoxis <steven.darklight@gmail.com>
Date: Sat Dec 6 04:19:19 2014 +0200
Added sys ebuilds