Lines Matching +full:slice +full:- +full:per +full:- +full:line
1 # SPDX-License-Identifier: GPL-2.0-only
8 - Re-run Kconfig when the compiler is updated
13 - Ensure full rebuild when the compiler is updated
14 include/linux/compiler-version.h contains this option in the comment
15 line so fixdep adds include/config/CC_VERSION_TEXT into the
16 auto-generated dependency. When the compiler is updated, syncconfig
20 def_bool $(success,test "$(cc-name)" = GCC)
24 default $(cc-version) if CC_IS_GCC
28 def_bool $(success,test "$(cc-name)" = Clang)
32 default $(cc-version) if CC_IS_CLANG
36 def_bool $(success,test "$(as-name)" = GNU)
39 def_bool $(success,test "$(as-name)" = LLVM)
45 default $(as-version)
48 def_bool $(success,test "$(ld-name)" = BFD)
52 default $(ld-version) if LD_IS_BFD
56 def_bool $(success,test "$(ld-name)" = LLD)
60 default $(ld-version) if LD_IS_LLD
65 default $(rustc-version)
75 Please see Documentation/rust/quick-start.rst for instructions on how
83 default $(rustc-llvm-version)
87 …default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLA…
88 …default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLA…
103 …nt x) { asm goto ("": "=r"(x) ::: bar); return x; bar: return 0; }' | $(CC) -x c - -c -o /dev/null)
105 …te__((cleanup(b)))=c();{asm goto(""::::l1);return 2;l1:return 3;}}' | $(CC) -x c - -c -o /dev/null)
109 # Detect buggy gcc and clang, fixed in gcc-11 clang-14.
110 …foo(int *x) { asm goto (".long (%l[bar]) - .": "+m"(*x) ::: bar); return *x; bar: return 0; }' | $…
113 …env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh)
116 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
122 # https://github.com/llvm/llvm-project/commit/c44fa3e8a9a44c2e9a575768a3c185354b9f6c17
129 … '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror)
136 # https://github.com/llvm/llvm-project/commit/160fb1121cdf703c3ef5e61fb26c5659eb581489
143 …[][4] __attribute__((__nonstring__)) = { };' | $(CC) $(CLANG_FLAGS) -x c - -c -o /dev/null -Werror)
147 # https://github.com/llvm/llvm-project/pull/130661
167 default $(shell,$(srctree)/scripts/pahole-version.sh $(PAHOLE))
208 variables passed to init from the kernel command line.
218 drivers to compile-test them.
229 enables the '-Werror' (for C) and '-Dwarnings' (for Rust) flags
245 Compile test headers exported to user-space to ensure they are
246 self-contained, i.e. compilable as standalone units.
249 headers are self-contained, say Y here. Otherwise, choose N.
252 string "Local version - append to kernel release"
270 A string of the format -gxxxxxxxx will be added to the localversion
271 if a git-based tree is found. The string generated by this will be
278 $ git rev-parse --verify HEAD
320 The linux kernel is a kind of self-extracting executable.
370 filter (i386, x86_64, ARM, ARM64, RISC-V, big endian PowerPC,
390 LZ4 is an LZ77-type compressor with a fixed, byte-oriented encoding.
406 line tool is required for compression.
425 option is passed on the kernel command line. If the requested path is
447 DOSEMU-HOWTO, available from <http://www.tldp.org/docs.html#howto>),
496 See Documentation/core-api/watch_queue.rst
545 statistics about user, system and idle time spent on per jiffies
560 this also enables accounting of stolen time on logically-partitioned
573 kernel-user boundaries using the context tracking subsystem.
660 bool "Enable per-task delay accounting"
681 bool "Enable per-task storage I/O accounting"
715 per default but can be enabled through passing psi=1 on the
720 common scheduling-intense workloads in practice (such as
751 on-disk kernel. This information can be extracted from the kernel
752 image file with the script scripts/extract-ikconfig and used as
768 This option enables access to the in-kernel headers that are generated during
771 kheaders.ko is built which can be loaded on-demand to get access to headers.
880 the precision of clamping aggregation and tracking at run-time.
886 If a second 30% boosted task should be co-scheduled on the same CPU,
897 clamp buckets to trade off used memory for run-time tracking
908 # Not particularly useful until we get to multi-rq proxying
911 This option enables proxy execution, a mechanism for mutex-owning
917 # For architectures that want to enable the support for NUMA-affine scheduler
925 # are unmapped instead of sending one IPI per page to flush. The architecture
934 def_bool !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0) && 64BIT
938 default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5)
939 default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough)
941 # Currently, disable gcc-10+ array-bounds globally.
942 # It's still broken in gcc-13, so no upper bound yet.
950 # Currently, disable -Wstringop-overflow for GCC globally.
969 # all cpu-local but of different latencies, such as SuperH.
1005 - Documentation/scheduler/sched-design-CFS.rst (CFS)
1006 - Documentation/admin-guide/cgroup-v1/ (features for grouping, isolation
1076 control disk bandwidth allocation (proportional time slice allocation)
1086 See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
1124 See Documentation/scheduler/sched-bwc.rst for more information.
1133 schedule realtime tasks for non-root users until you allocate
1135 See Documentation/scheduler/sched-rt-group.rst for more information.
1162 bool "Utilization clamping per group of tasks"
1177 specified task-specific clamp value is constrained by the cgroup
1226 controller includes important in-kernel memory consumers per default.
1237 When you enable this, you can put a per cgroup limit on HugeTLB usage.
1293 This option extends the perf per-cpu mode to restrict monitoring
1325 /Documentation/admin-guide/cgroup-v2.rst.
1389 user-space use the memory control groups to limit the amount
1439 bool "Kernel->user space relay support (formerly relayfs)"
1457 etc. See <file:Documentation/admin-guide/initrd.rst> for details.
1479 See <file:Documentation/admin-guide/bootconfig.rst> for details.
1489 out even when the "bootconfig" kernel-boot parameter is omitted.
1491 make the kernel ignore the BOOT_CONFIG-supplied kernel-boot
1531 Build KUnit tests for initramfs. See Documentation/dev-tools/kunit
1538 bool "Optimize for performance (-O2)"
1541 with the "-O2" compiler flag for best performance and most
1542 helpful compile-time warnings.
1545 bool "Optimize for size (-Os)"
1547 Choosing this option will pass "-Os" to your compiler resulting
1566 depends on $(cc-option,-ffunction-sections -fdata-sections)
1567 depends on $(ld-option,--gc-sections)
1570 the linker by compiling with -ffunction-sections -fdata-sections,
1571 and linking with --gc-sections.
1573 This can reduce on disk and in-memory size of the kernel
1583 depends on $(ld-option,--orphan-handling=warn)
1584 depends on $(ld-option,--orphan-handling=error)
1601 Enable support for /proc/sys/debug/exception-trace.
1606 Enable support for /proc/sys/kernel/ignore-unaligned-usertrap
1613 Enable support for /proc/sys/kernel/unaligned-trap
1633 # Unhide debug options, to make the on-by-default options visible
1638 environments which can tolerate a "non-standard" kernel.
1642 bool "Enable 16-bit UID system calls" if EXPERT
1646 This enables the legacy 16-bit UID syscall wrappers.
1652 This option enables support for non-root users, groups and
1744 bool "Enable PC-Speaker support" if EXPERT
1749 This option allows to disable the internal PC-Speaker
1753 bool "Enable smaller-sized data structures for core" if EXPERT
1767 run glibc-based applications correctly.
1886 the cost of user-space memory barriers asymmetrically by transforming
1896 user-space with the ability to compare two processes to see if they
1909 user-space cache for the current CPU number value, which
1910 speeds up getting the current CPU number from user-space,
1911 as well as an ABI to speed up user-space operations on
1912 per-CPU data.
1952 Start self-test automatically after system startup. Suggest executing
1954 displayed in the last line, indicating that the test is complete.
1987 A 64-bit kernel is required for the memory sealing feature.
2002 Documentation/userspace-api/mseal.rst
2029 Software events are supported either built-in or via the
2035 suffered, or branches mis-predicted - without slowing down the
2037 when a threshold number of events have passed - and can thus be
2043 provides per task and per CPU counters, and it provides event
2104 This allows other Rust-related options, like drivers written in Rust,
2124 # The dummy parameter `workaround-for-0.69.0` is required to support 0.69.0
2125 # (https://github.com/rust-lang/rust-bindgen/pull/2678) and 0.71.0
2126 # (https://github.com/rust-lang/rust-bindgen/pull/3040). It can be removed
2129 default "$(shell,$(BINDGEN) --version workaround-for-0.69.0 2>/dev/null)"
2196 # macros for not-implemented syscalls in kernel/sys_ni.c and
2197 # kernel/time/posix-stubs.c. All these overrides need to be available in