Lines Matching +full:psi +full:- +full:l
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
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
68 Please see Documentation/rust/quick-start.rst for instructions on how
76 …default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLA…
77 …default $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLA…
81 …efault $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAG…
82 …efault $(success,$(srctree)/scripts/cc-can-link.sh $(CC) $(CLANG_FLAGS) $(USERCFLAGS) $(USERLDFLAG…
85 …nt x) { asm goto ("": "=r"(x) ::: bar); return x; bar: return 0; }' | $(CC) -x c - -c -o /dev/null)
89 # Detect buggy gcc and clang, fixed in gcc-11 clang-14.
90 …int foo(int *x) { asm goto (".long (%l[bar]) - .": "+m"(*x) ::: bar); return *x; bar: return 0; }'…
102 …env "CC=$(CC)" "LD=$(LD)" "NM=$(NM)" "OBJCOPY=$(OBJCOPY)" $(srctree)/scripts/tools-support-relr.sh)
105 def_bool $(success,echo 'void foo(void) { asm inline (""); }' | $(CC) -x c - -c -o /dev/null)
108 … '__attribute__((no_profile_instrument_function)) int x();' | $(CC) -x c - -c -o /dev/null -Werror)
113 … __attribute__((__counted_by__(count))); };' | $(CC) $(CLANG_FLAGS) -x c - -c -o /dev/null -Werror)
115 # https://github.com/llvm/llvm-project/pull/110497
116 # https://github.com/llvm/llvm-project/pull/112636
121 default $(shell,$(srctree)/scripts/pahole-version.sh $(PAHOLE))
168 drivers to compile-test them.
179 enables the '-Werror' (for C) and '-Dwarnings' (for Rust) flags
195 Compile test headers exported to user-space to ensure they are
196 self-contained, i.e. compilable as standalone units.
199 headers are self-contained, say Y here. Otherwise, choose N.
202 string "Local version - append to kernel release"
220 A string of the format -gxxxxxxxx will be added to the localversion
221 if a git-based tree is found. The string generated by this will be
228 $ git rev-parse --verify HEAD
270 The linux kernel is a kind of self-extracting executable.
320 filter (i386, x86_64, ARM, IA-64, PowerPC, and SPARC), XZ
339 LZ4 is an LZ77-type compressor with a fixed, byte-oriented encoding.
396 DOSEMU-HOWTO, available from <http://www.tldp.org/docs.html#howto>),
445 See Documentation/core-api/watch_queue.rst
519 this also enables accounting of stolen time on logically-partitioned
532 kernel-user boundaries using the context tracking subsystem.
619 bool "Enable per-task delay accounting"
640 bool "Enable per-task storage I/O accounting"
648 config PSI config
664 For more details see Documentation/accounting/psi.rst.
671 depends on PSI
674 per default but can be enabled through passing psi=1 on the
679 common scheduling-intense workloads in practice (such as
710 on-disk kernel. This information can be extracted from the kernel
711 image file with the script scripts/extract-ikconfig and used as
727 This option enables access to the in-kernel headers that are generated during
730 kheaders.ko is built which can be loaded on-demand to get access to headers.
839 the precision of clamping aggregation and tracking at run-time.
845 If a second 30% boosted task should be co-scheduled on the same CPU,
856 clamp buckets to trade off used memory for run-time tracking
864 # For architectures that want to enable the support for NUMA-affine scheduler
881 def_bool !$(cc-option,$(m64-flag) -D__SIZEOF_INT128__=0) && 64BIT
885 default "-Wimplicit-fallthrough=5" if CC_IS_GCC && $(cc-option,-Wimplicit-fallthrough=5)
886 default "-Wimplicit-fallthrough" if CC_IS_CLANG && $(cc-option,-Wunreachable-code-fallthrough)
888 # Currently, disable gcc-10+ array-bounds globally.
889 # It's still broken in gcc-13, so no upper bound yet.
904 # all cpu-local but of different latencies, such as SuperH.
937 - Documentation/scheduler/sched-design-CFS.rst (CFS)
938 - Documentation/admin-guide/cgroup-v1/ (features for grouping, isolation
990 See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
1020 See Documentation/scheduler/sched-bwc.rst for more information.
1029 schedule realtime tasks for non-root users until you allocate
1031 See Documentation/scheduler/sched-rt-group.rst for more information.
1055 specified task-specific clamp value is constrained by the cgroup
1094 controller includes important in-kernel memory consumers per default.
1146 This option extends the perf per-cpu mode to restrict monitoring
1178 /Documentation/admin-guide/cgroup-v2.rst.
1242 user-space use the memory control groups to limit the amount
1292 bool "Kernel->user space relay support (formerly relayfs)"
1310 etc. See <file:Documentation/admin-guide/initrd.rst> for details.
1332 See <file:Documentation/admin-guide/bootconfig.rst> for details.
1342 out even when the "bootconfig" kernel-boot parameter is omitted.
1344 make the kernel ignore the BOOT_CONFIG-supplied kernel-boot
1383 bool "Optimize for performance (-O2)"
1386 with the "-O2" compiler flag for best performance and most
1387 helpful compile-time warnings.
1390 bool "Optimize for size (-Os)"
1392 Choosing this option will pass "-Os" to your compiler resulting
1411 depends on $(cc-option,-ffunction-sections -fdata-sections)
1412 depends on $(ld-option,--gc-sections)
1415 the linker by compiling with -ffunction-sections -fdata-sections,
1416 and linking with --gc-sections.
1418 This can reduce on disk and in-memory size of the kernel
1428 depends on $(ld-option,--orphan-handling=warn)
1429 depends on $(ld-option,--orphan-handling=error)
1446 Enable support for /proc/sys/debug/exception-trace.
1451 Enable support for /proc/sys/kernel/ignore-unaligned-usertrap
1458 Enable support for /proc/sys/kernel/unaligned-trap
1473 # Unhide debug options, to make the on-by-default options visible
1478 environments which can tolerate a "non-standard" kernel.
1482 bool "Enable 16-bit UID system calls" if EXPERT
1486 This enables the legacy 16-bit UID syscall wrappers.
1492 This option enables support for non-root users, groups and
1582 bool "Enable PC-Speaker support" if EXPERT
1587 This option allows to disable the internal PC-Speaker
1592 bool "Enable full-sized data structures for core" if EXPERT
1606 run glibc-based applications correctly.
1691 the cost of user-space memory barriers asymmetrically by transforming
1714 Start self-test automatically after system startup. Suggest executing
1747 emit the symbol references in the kallsyms table as 32-bit entries,
1754 On 64-bit builds, this reduces the size of the address table by 50%,
1773 user-space with the ability to compare two processes to see if they
1786 user-space cache for the current CPU number value, which
1787 speeds up getting the current CPU number from user-space,
1788 as well as an ABI to speed up user-space operations on
1789 per-CPU data.
1844 Software events are supported either built-in or via the
1850 suffered, or branches mis-predicted - without slowing down the
1852 when a threshold number of events have passed - and can thus be
1915 This allows other Rust-related options, like drivers written in Rust,
1928 default "$(shell,$(RUSTC) --version 2>/dev/null)"
1933 # The dummy parameter `workaround-for-0.69.0` is required to support 0.69.0
1934 # (https://github.com/rust-lang/rust-bindgen/pull/2678). It can be removed when
1936 default "$(shell,$(BINDGEN) --version workaround-for-0.69.0 2>/dev/null)"
2004 # macros for not-implemented syscalls in kernel/sys_ni.c and
2005 # kernel/time/posix-stubs.c. All these overrides need to be available in