measured interval as upper bound. It should be more precise then just
assuming hz/2. For idle CPU it should be quite precise, for busy - not
worse then before.
external variables named "i". The "_" prefix is reserved for infrastructure
type code and is therefore not expected to be used by normal code likely to
call DPCPU_SUM(). [1]
- Change DPCPU_SUM to return the sum rather than calculate and assign it
internally. Usage is now: "sum = DPCPU_SUM(dpcpu_var, member_to_sum);" [2]
- Fix some style nits. [3]
Sponsored by: FreeBSD Foundation
Suggested by: bde [3], mdf [1], kib [1,2], pjd [1,3]
Reviewed by: kib
MFC after: 1 week (instead of r209119)
Although the Keywest registers have only 1 byte of content, they are
secretly 4-byte registers, which became apparent from them moving on the
big-endian Uninorth version of the controller.
On Apple systems at least, all the level interrupts are wired active low.
Before this change, our PIC programming only worked because Apple hardware
ignores the interrupt polarity bit on all interrupts except IRQ 0.
error in /usr/lib/crtendS.o(.eh_frame); no .eh_frame_hdr table will be created.
The issue is that crtend is compiled with unwind table, and also it
places the special CIE into the .eh_frame indicating the end of section,
that is located before generated unwind table. New ld has assertion that
verifies that closing CIE is indeed the last CIE, causing the crypting
message to be issued, and refusing to generate dwarf unwind.
Add -fno-asynchronous-unwind-tables to disable unwind table generation
for crtbegin/crtend. While there, disable omitting the frame pointer [1].
Requested by: kan [1]
Reviewed by: kan
MFC after: 2 weeks
Modified submitter's original patch to reference why this is broken and what to do to work around the issue.
Submitted by: hubert@tournier.org
PR: bin/147572
Reviewed by: jhb
MFC after: 2 weeks
This information can be very valuable for CPU sleep-time (and respectively
idle power consumption) optimization.
Add counters for timer-related IPIs.
Reviewed by: jhb@ (previous version)
New code that creates character devices shouldn't use device unit
numbers, but only si_drv[12] to hold pointer to per-device data. Make
this function more future proof by removing the unit number argument.
Discussed with: kib
* Don't strdup the name when calling deviceRegister because the string is
copied within new_device.
* Use a subtype of 165, not 3, when creating a slice in noninteractive
mode.
PR: bin/135333
PR: bin/66350
Approved by: rrs (mentor)
MFC after: 1 month
reading current frequency on every period. Instead do it only after
changing and periodically from time to time if somebody else change it.
Also dynamically decrease sampling frequency up to 4 times on inactivity,
