Changeset View
Changeset View
Standalone View
Standalone View
head/UPDATING
Show All 25 Lines | NOTE TO PEOPLE WHO THINK THAT FreeBSD 11.x IS SLOW: | ||||
includes various WITNESS- related kernel options, INVARIANTS, malloc | includes various WITNESS- related kernel options, INVARIANTS, malloc | ||||
debugging flags in userland, and various verbose features in the | debugging flags in userland, and various verbose features in the | ||||
kernel. Many developers choose to disable these features on build | kernel. Many developers choose to disable these features on build | ||||
machines to maximize performance. (To completely disable malloc | machines to maximize performance. (To completely disable malloc | ||||
debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely | debugging, define MALLOC_PRODUCTION in /etc/make.conf, or to merely | ||||
disable the most expensive debugging functionality run | disable the most expensive debugging functionality run | ||||
"ln -s 'abort:false,junk:false' /etc/malloc.conf".) | "ln -s 'abort:false,junk:false' /etc/malloc.conf".) | ||||
20150813: | |||||
The WITHOUT_ELFTOOLCHAIN_TOOLS src.conf(5) knob has been retired. | |||||
Control over building the ELF Tool Chain tools is now provided by | |||||
the WITHOUT_TOOLCHAIN knob. | |||||
20150810: | 20150810: | ||||
The polarity of Pulse Per Second (PPS) capture events with the | The polarity of Pulse Per Second (PPS) capture events with the | ||||
uart(4) driver has been corrected. Prior to this change the PPS | uart(4) driver has been corrected. Prior to this change the PPS | ||||
"assert" event corresponded to the trailing edge of a positive PPS | "assert" event corresponded to the trailing edge of a positive PPS | ||||
pulse and the "clear" event was the leading edge of the next pulse. | pulse and the "clear" event was the leading edge of the next pulse. | ||||
As the width of a PPS pulse in a typical GPS receiver is on the | As the width of a PPS pulse in a typical GPS receiver is on the | ||||
order of 1 millisecond, most users will not notice any significant | order of 1 millisecond, most users will not notice any significant | ||||
▲ Show 20 Lines • Show All 1,322 Lines • Show Last 20 Lines |