Lines Matching +full:rdma +full:- +full:fifo +full:- +full:size
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
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))
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.
333 size matters less.
350 size is about 10% smaller with bzip2, in comparison to gzip.
360 The kernel size is about 33% smaller with LZMA in comparison to gzip.
368 code. The size of the kernel is about 30% smaller with XZ in
370 filter (i386, x86_64, ARM, ARM64, RISC-V, big endian PowerPC,
383 size is about 10% bigger than gzip; however its speed
390 LZ4 is an LZ77-type compressor with a fixed, byte-oriented encoding.
394 Its compression ratio is worse than LZO. The size of the kernel
447 DOSEMU-HOWTO, available from <http://www.tldp.org/docs.html#howto>),
496 See Documentation/core-api/watch_queue.rst
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"
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.
774 int "Kernel log buffer size (16 => 64KB, 17 => 128KB)"
779 Select the minimal kernel log buffer size as a power of 2.
780 The final size is affected by LOG_CPU_MAX_BUF_SHIFT config
781 parameter, see below. Any higher size also might be forced
793 int "CPU kernel log buffer size contribution (13 => 8 KB, 17 => 128KB)"
800 This option allows to increase the default ring buffer size
806 The increased size means that a new buffer has to be allocated and
814 used as it forces an exact (power of two) size of the ring buffer.
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
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
1086 See Documentation/admin-guide/cgroup-v1/blkio-controller.rst for more information.
1124 See Documentation/scheduler/sched-bwc.rst for more information.
1127 bool "Group scheduling for SCHED_RR/FIFO"
1133 schedule realtime tasks for non-root users until you allocate
1135 See Documentation/scheduler/sched-rt-group.rst for more information.
1138 bool "Require boot parameter to enable group scheduling for SCHED_RR/FIFO"
1177 specified task-specific clamp value is constrained by the cgroup
1200 bool "RDMA controller"
1202 Provides enforcement of RDMA resources defined by IB stack.
1203 It is fairly easy for consumers to exhaust RDMA resources, which
1205 RDMA controller is designed to stop this from happening.
1206 Attaching processes with active RDMA resources to the cgroup
1226 controller includes important in-kernel memory consumers per default.
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.
1461 15 Kbytes (more on some other architectures) to the kernel size.
1478 with checksum, size and magic word.
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
1691 can be configured out to reduce the size of the kernel image.
1730 the size of your kernel image and potentially quietly ignoring
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
1755 Enabling this option reduces the size of miscellaneous core
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.
1940 symbolic stack backtraces. This increases the size of the kernel
1952 Start self-test automatically after system startup. Suggest executing
1969 size (depending on the kernel configuration, it may be 300KiB or
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
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