Changeset View
Changeset View
Standalone View
Standalone View
head/UPDATING
Show All 25 Lines | NOTE TO PEOPLE WHO THINK THAT FreeBSD 12.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".) | ||||
20180702: | |||||
On i386 and amd64 atomics are now inlined. Out of tree modules using | |||||
atomics will need to be rebuilt. | |||||
20180701: | 20180701: | ||||
The '%I' format in the kern.corefile sysctl limits the number of | The '%I' format in the kern.corefile sysctl limits the number of | ||||
core files that a process can generate to the number stored in the | core files that a process can generate to the number stored in the | ||||
debug.ncores sysctl. The '%I' format is replaced by the single digit | debug.ncores sysctl. The '%I' format is replaced by the single digit | ||||
index. Previously, if all indexes were taken the kernel would overwrite | index. Previously, if all indexes were taken the kernel would overwrite | ||||
only a core file with the highest index in a filename. | only a core file with the highest index in a filename. | ||||
Currently the system will create a new core file if there is a free | Currently the system will create a new core file if there is a free | ||||
index or if all slots are taken it will overwrite the oldest one. | index or if all slots are taken it will overwrite the oldest one. | ||||
▲ Show 20 Lines • Show All 1,664 Lines • Show Last 20 Lines |