litmus-rt.git, branch 2012.1 The LITMUS^RT kernel. Feather-Trace: keep track of interrupt-related interference. 2012-01-30T19:07:08+00:00 Bjoern B. Brandenburg bbb@cs.unc.edu 2012-01-24T08:36:12+00:00 83b11ea1c6ad113519c488853cf06e626c95a64d Increment a processor-local counter whenever an interrupt is handled. This allows Feather-Trace to include a (truncated) counter and a flag to report interference from interrupts. This could be used to filter samples that were disturbed by interrupts. 
Increment a processor-local counter whenever an interrupt is handled.
This allows Feather-Trace to include a (truncated) counter and a flag
to report interference from interrupts. This could be used to filter
samples that were disturbed by interrupts.
Litmus core: simplify np-section protocol 2011-11-24T20:21:08+00:00 Bjoern B. Brandenburg bbb@cs.unc.edu 2011-07-28T05:15:58+00:00 5bd89a34d89f252619d83fef3c9325e24311389e User a 32-bit word for all non-preemptive section flags. Set the "please yield soon" flag atomically when accessing it on remotely-scheduled tasks. 
User a 32-bit word for all non-preemptive section flags.
Set the "please yield soon" flag atomically when
accessing it on remotely-scheduled tasks.
C-EDF: rename lock -> cluster_lock 2011-11-24T20:21:08+00:00 Bjoern B. Brandenburg bbb@cs.unc.edu 2011-07-27T02:03:18+00:00 81b8eb2ae452c241df9b3a1fb2116fa4d5adcb75 The macro lock conflicts with locking protocols... 
The macro lock conflicts with locking protocols...
locking: use correct timestamp 2011-11-24T20:21:07+00:00 Bjoern B. Brandenburg bbb@cs.unc.edu 2011-07-25T19:31:55+00:00 71083a7604e93e44536edde032706348f3a752ca 






Feather-trace: let userspace add overhead events
2011-11-24T20:21:06+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-07-24T03:40:10+00:00

e079932a0a1aab6adbc42fedefc6caa2d9a8af2b

This is useful for measuring locking-related overheads
that are partially recorded in userspace.





This is useful for measuring locking-related overheads
that are partially recorded in userspace.







ftdev: let bufffer-specific code handle writes from userspace
2011-11-24T20:21:05+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-07-24T03:38:57+00:00

12982f31a233250c7a62b17fb4bd13594cb78777

This allows us to splice in information into logs from events
that were recorded in userspace.





This allows us to splice in information into logs from events
that were recorded in userspace.







ftdev: remove event activation hack
2011-11-24T20:21:04+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-07-24T03:06:20+00:00

49e5b0c0d7c09bef5b9bfecaaac3f0ea2cf24e43

Instead of doing the hackisch 'write commands to device' thing,
let's  just use a real ioctl() interface.





Instead of doing the hackisch 'write commands to device' thing,
let's  just use a real ioctl() interface.







Feather-Trace: keep track of release latency
2011-11-24T20:21:04+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-02-06T04:15:09+00:00

1dead199b4ae68ab98eacec4a661fd5ecb5a2704












Feather-Trace: trace locking-related suspensions
2011-11-24T19:15:06+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-02-06T03:57:57+00:00

4490f9ecf94e28458069a02e8cfcf4f385390499












Feather-Trace: start with the largest permissible range
2011-11-24T19:08:23+00:00

Bjoern B. Brandenburg
bbb@cs.unc.edu

2011-02-06T01:11:30+00:00

b739b4033c0f55f9194be2793db9e6ace06047db

MAX_ORDER is 11, but this is about number of records, not number of pages.





MAX_ORDER is 11, but this is about number of records, not number of pages.