| /openbmc/linux/Documentation/admin-guide/pm/ |
| H A D | intel-speed-select.rst | 1 .. SPDX-License-Identifier: GPL-2.0
8 collection of features that give more granular control over CPU performance.
9 With Intel(R) SST, one server can be configured for power and performance for a
14 - https://www.intel.com/content/www/us/en/architecture-and-technology/speed-select-technology-artic…
15 - https://builders.intel.com/docs/networkbuilders/intel-speed-select-technology-base-frequency-enha…
19 dynamically without pre-configuring via BIOS setup options. This dynamic
25 how these commands change the power and performance profile of the system under
29 intel-speed-select configuration tool
32 Most Linux distribution packages may include the "intel-speed-select" tool. If not,
38 # cd tools/power/x86/intel-speed-select/
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| /openbmc/linux/tools/power/x86/x86_energy_perf_policy/ |
| H A D | x86_energy_perf_policy.8 | 1 .\" This page Copyright (C) 2010 - 2015 Len Brown <len.brown@intel.com>
5 x86_energy_perf_policy \- Manage Energy vs. Performance Policy via x86 Model Specific Registers
10 .RB "scope: \-\-cpu\ cpu-list | \-\-pkg\ pkg-list"
12 .RB "cpu-list, pkg-list: # | #,# | #-# | all"
14 .RB "field: \-\-all | \-\-epb | \-\-hwp-epp | \-\-hwp-min | \-\-hwp-max | \-\-hwp-desired"
16 .RB "other: (\-\-force | \-\-hwp-enable | \-\-turbo-enable) value)"
18 .RB "value: # | default | performance | balance-performance | balance-power | power"
21 displays and updates energy-performance policy settings specific to
23 updates, no matter if the Linux cpufreq sub-system is enabled or not.
27 such as how aggressively the hardware enters and exits CPU idle states (C-states)
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| /openbmc/u-boot/arch/arm/mach-omap2/omap5/ |
| H A D | Kconfig | 6 DRA7xx is an OMAP based SOC with Dual Core A-15s.
13 bool "CompuLab CL-SOM-AM57x"
17 bool "CompuLab CM-T54"
62 expected to specify a pre-computed time using the above option.
77 Select the Operating Performance Point(OPP) for the MPU voltage
91 Select the Operating Performance Point(OPP) for the DSPEVE voltage
106 bool "OPP HIGH"
108 This config option enables High OPP for DSPEVE.
115 Select the Operating Performance Point(OPP) for the IVA voltage
130 bool "OPP HIGH"
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| /openbmc/openbmc/meta-openembedded/meta-oe/recipes-extended/libqb/ |
| H A D | libqb_2.0.8.bb | 1 SUMMARY = "An IPC library for high performance servers"
2 DESCRIPTION = "libqb is a library with the primary purpose of providing high performance client ser…
3 It provides high performance logging, tracing, ipc, and poll."
7 LICENSE = "LGPL-2.1-only"
19 CFLAGS += "-pthread -D_REENTRANT"
|
| /openbmc/linux/Documentation/devicetree/bindings/bus/ |
| H A D | aspeed,ast2600-ahbc.yaml | 1 # SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
3 ---
4 $id: http://devicetree.org/schemas/bus/aspeed,ast2600-ahbc.yaml#
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
7 title: ASPEED Advanced High-Performance Bus Controller (AHBC)
10 - Neal Liu <neal_liu@aspeedtech.com>
11 - Chia-Wei Wang <chiawei_wang@aspeedtech.com>
14 Advanced High-performance Bus Controller (AHBC) supports plenty of mechanisms
16 to control the overall operations of Advanced High-performance Bus (AHB).
21 - aspeed,ast2600-ahbc
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| /openbmc/linux/Documentation/usb/ |
| H A D | ehci.rst | 5 27-Dec-2002
7 The EHCI driver is used to talk to high speed USB 2.0 devices using
8 USB 2.0-capable host controller hardware. The USB 2.0 standard is
11 - "High Speed" 480 Mbit/sec (60 MByte/sec)
12 - "Full Speed" 12 Mbit/sec (1.5 MByte/sec)
13 - "Low Speed" 1.5 Mbit/sec
15 USB 1.1 only addressed full speed and low speed. High speed devices
24 high speed "split transactions" that don't waste transfer bandwidth.
31 While usb-storage devices have been available since mid-2001 (working
33 been available since late 2001, and other kinds of high speed devices
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| /openbmc/u-boot/arch/arm/ |
| H A D | Kconfig | 14 bool "Generate position-independent pre-relocation code"
16 U-Boot expects to be linked to a specific hard-coded address, and to
20 information that is embedded into the binary to support U-Boot
21 relocating itself to the top-of-RAM later during execution.
28 U-Boot typically uses a hard-coded value for the stack pointer
30 initial SP at run-time. This is useful to avoid hard-coding addresses
31 into U-Boot, so that can be loaded and executed at arbitrary
41 Place a Linux kernel image header at the start of the U-Boot binary.
45 U-Boot needs to use, but which isn't part of the binary.
74 Do not enable instruction cache in U-Boot
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| /openbmc/u-boot/arch/arm/mach-omap2/ |
| H A D | Kconfig | 82 The AM335x high performance SOC features a Cortex-A8
92 The AM335x high performance SOC features a Cortex-A8
112 The AM43xx high performance SOC features a Cortex-A9
113 ARM core, a quad core PRU-ICSS for industrial Ethernet
130 The AM335x high performance SOC features a Cortex-A8
131 ARM core, a dual core PRU-ICSS for industrial Ethernet
149 Reserved EMIF region start address. Set to "0" to auto-select
178 boot image. For non-XIP devices, the ROM then copies the image into
181 on the device type (secure/non-secure), boot media (xip/non-xip) and
185 source "arch/arm/mach-omap2/omap3/Kconfig"
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| /openbmc/u-boot/arch/arm/cpu/armv8/fsl-layerscape/doc/ |
| H A D | README.soc | 13 ---------
14 The LS1043A integrated multicore processor combines four ARM Cortex-A53
20 - Four 64-bit ARM Cortex-A53 CPUs
21 - 1 MB unified L2 Cache
22 - One 32-bit DDR3L/DDR4 SDRAM memory controllers with ECC and interleaving
24 - Data Path Acceleration Architecture (DPAA) incorporating acceleration the
26 - Packet parsing, classification, and distribution (FMan)
27 - Queue management for scheduling, packet sequencing, and congestion
29 - Hardware buffer management for buffer allocation and de-allocation (BMan)
30 - Cryptography acceleration (SEC)
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| /openbmc/linux/tools/power/cpupower/bench/ |
| H A D | README-BENCH | 1 This is cpufreq-bench, a microbenchmark for the cpufreq framework.
7 - Identify worst case performance loss when doing dynamic frequency
9 - Identify average reaction time of a governor to CPU load changes
10 - (Stress) Testing whether a cpufreq low level driver or governor works
12 - Identify cpufreq related performance regressions between kernels
13 - Possibly Real time priority testing? -> what happens if there are
15 - ...
18 - Power saving related regressions (In fact as better the performance
21 - Real world (workloads)
27 cpufreq-bench helps to test the condition of a given cpufreq governor.
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| /openbmc/linux/drivers/platform/mellanox/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0
23 This driver handles hot-plug events for the power suppliers, power
43 This driver provides support for the Mellanox MSN4800-XX line cards,
45 providing a high performance switching solution for Enterprise Data
46 Centers (EDC) for building Ethernet based clusters, High-Performance
73 tristate "Mellanox BlueField Performance Monitoring Counters driver"
79 to performance monitoring counters within various blocks in the
92 serial port (RS-232 interface), an OOB port (1G/100M MDI interface)
96 System equipped with Nvidia®Spectrum-1 32x100GbE Ethernet switch.
|
| /openbmc/linux/Documentation/devicetree/bindings/sound/ |
| H A D | cirrus,cs4234.yaml | 1 # SPDX-License-Identifier: (GPL-2.0+ OR BSD-2-Clause)
3 ---
5 $schema: http://devicetree.org/meta-schemas/core.yaml#
10 - patches@opensource.cirrus.com
14 high performance analog to digital conversion, 4 channels of high
15 performance digital to analog conversion for audio, and 1 channel of
19 standard audio grade DAC, with performance specifications identical
22 provide lead time for the external switch-mode power supply, and a
24 low-latency path to the outputs.
29 - cirrus,cs4234
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| /openbmc/openbmc/meta-openembedded/meta-python/recipes-devtools/python/ |
| H A D | python3-pandas_2.2.2.bb | 1 SUMMARY = "pandas library for high-performance data analysis tools"
2 DESCRIPTION = "pandas is an open source, BSD-licensed library providing \
3 high-performance, easy-to-use data structures and data analysis tools for \
6 LICENSE = "BSD-3-Clause"
10 file://0001-pyproject.toml-don-t-pin-dependency-versions.patch \
11 file://0001-pyproject.toml-Downgrade-numpy-version-needs-to-1.x.patch \
19 python3-numpy-native \
20 python3-versioneer-native \
23 CFLAGS:append:toolchain-clang = " -Wno-error=deprecated-declarations"
26 python3-json \
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| /openbmc/linux/drivers/scsi/ |
| H A D | sense_codes.h | 1 /* SPDX-License-Identifier: GPL-2.0 */
4 * http://www.t10.org/lists/asc-num.txt [most recent: 20200817]
9 SENSE_CODE(0x0002, "End-of-partition/medium detected")
11 SENSE_CODE(0x0004, "Beginning-of-partition/medium detected")
12 SENSE_CODE(0x0005, "End-of-data detected")
51 SENSE_CODE(0x0409, "Logical unit not ready, self-test in progress")
87 SENSE_CODE(0x0801, "Logical unit communication time-out")
89 SENSE_CODE(0x0803, "Logical unit communication CRC error (Ultra-DMA/32)")
102 SENSE_CODE(0x0B01, "Warning - specified temperature exceeded")
103 SENSE_CODE(0x0B02, "Warning - enclosure degraded")
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| /openbmc/linux/Documentation/scsi/ |
| H A D | FlashPoint.rst | 1 .. SPDX-License-Identifier: GPL-2.0
17 FREMONT, CA, -- October 8, 1996 -- Mylex Corporation has expanded Linux
33 Linux is a freely-distributed implementation of UNIX for Intel x86, Sun
53 produces high performance disk array (RAID) controllers, and complementary
58 enhance CPU utilization, optimize I/O performance, and ensure data security
71 510/796-6100
78 BusLogic FlashPoint LT/BT-948 Upgrade Program
82 BusLogic FlashPoint LW/BT-958 Upgrade Program
89 particularly well suited for a high performance multitasking operating
91 vendors as the latest thing, and has been sold even on many of their high
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| /openbmc/linux/Documentation/virt/ |
| H A D | paravirt_ops.rst | 1 .. SPDX-License-Identifier: GPL-2.0
13 including native machine -- without any hypervisors.
16 corresponding to low-level critical instructions and high-level
18 time by enabling binary patching of the low-level critical operations
23 - simple indirect call
24 These operations correspond to high-level functionality where it is
27 - indirect call which allows optimization with binary patch
28 Usually these operations correspond to low-level critical instructions. They
29 are called frequently and are performance critical. The overhead is
32 - a set of macros for hand written assembly code
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| /openbmc/openbmc/poky/meta/recipes-extended/lighttpd/ |
| H A D | lighttpd_1.4.76.bb | 1 SUMMARY = "Lightweight high-performance web server"
3 …high-performance web server is designed and optimized for high performance environments. With a sm…
6 LICENSE = "BSD-3-Clause"
10 RDEPENDS:${PN} = "lighttpd-module-dirlisting"
11 RRECOMMENDS:${PN} = "lighttpd-module-accesslog"
13 SRC_URI = "http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-${PV}.tar.xz \
27 PACKAGECONFIG[libev] = "-Dwith_libev=enabled,-Dwith_libev=disabled,libev"
28 PACKAGECONFIG[mysql] = "-Dwith_mysql=enabled,-Dwith_mysql=disabled,mariadb"
29 PACKAGECONFIG[ldap] = "-Dwith_ldap=enabled,-Dwith_ldap=disabled,openldap"
30 PACKAGECONFIG[attr] = "-Dwith_xattr=true,-Dwith_xattr=false,attr"
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| /openbmc/openbmc/poky/meta/recipes-support/serf/ |
| H A D | serf_1.3.10.bb | 1 SUMMARY = "High-Performance Asynchronous HTTP Client Library"
2 DESCRIPTION = "The Apache Serf library is a C-based HTTP client library built upon the Apache \
5 kept to a minimum to provide high performance operation."
7 SRC_URI = "${APACHE_MIRROR}/${BPN}/${BPN}-${PV}.tar.bz2 \
10 file://0002-SConstruct-Fix-path-quoting-for-.def-generator.patch \
11 file://0003-gen_def.patch \
12 file://SConstruct.stop.creating.directories.without.sandbox-install.prefix.patch \
17 LICENSE = "Apache-2.0"
22 DEPENDS += " openssl apr apr-util util-linux expat"
26 --install-sandbox=${D} \
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| /openbmc/linux/Documentation/ABI/testing/ |
| H A D | sysfs-platform_profile | 4 Description: This file contains a space-separated list of profiles supported for this device.
6 Drivers must use the following standard profile-names:
9 low-power Low power consumption
13 and performance
14 balanced-performance Balance between performance and low
16 towards performance
17 performance High performance operation
34 either directly by the embedded-controller or fully handled
|
| /openbmc/u-boot/doc/ |
| H A D | README.ARC | 1 Synopsys' DesignWare(r) ARC(r) Processors are a family of 32-bit CPUs
3 to high-performance host applications.
9 technology to tailor each ARC processor instance to meet specific performance,
13 their own custom instructions that dramatically increase performance.
16 collectively ship more than 1 billion ARC-based chips annually.
18 All DesignWare ARC processors utilize a 16-/32-bit ISA that provides excellent
19 performance and code density for embedded and host SoC applications.
25 from here (available pre-built toolchains as well):
27 https://github.com/foss-for-synopsys-dwc-arc-processors/toolchain/releases
|
| H A D | README.NDS32 | 1 NDS32 is a new high-performance 32-bit RISC microprocessor core.
7 AndeStar is a patent-pending 16-bit/32-bit mixed-length instruction set to
8 achieve optimal system performance, code density, and power efficiency.
11 - Intermixable 32-bit and 16-bit instruction sets without the need for
13 - 16-bit instructions as a frequently used subset of 32-bit instructions.
14 - RISC-style register-based instruction set.
15 - 32 32-bit General Purpose Registers (GPR).
16 - Upto 1024 User Special Registers (USR) for existing and extension
18 - Rich load/store instructions for...
19 - Single memory access with base address update.
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| /openbmc/phosphor-dbus-interfaces/yaml/xyz/openbmc_project/Control/Power/ |
| H A D | Mode.interface.yaml | 5 - name: PowerMode
11 consumption and performance.
13 - xyz.openbmc_project.Common.Error.InvalidArgument
14 - xyz.openbmc_project.Common.Error.NotAllowed
16 - name: SafeMode
19 - readonly
25 - name: AllowedPowerModes
28 - const
36 - name: PowerMode
40 - name: BalancedPerformance
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| /openbmc/linux/Documentation/userspace-api/ |
| H A D | sysfs-platform_profile.rst | 5 On modern systems the platform performance, temperature, fan and other
13 operation or towards performance.
19 NOT a goal of this API to allow monitoring the resulting performance
20 characteristics. Monitoring performance is best done with device/vendor
23 Specifically when selecting a high performance profile the actual achieved
24 performance may be limited by various factors such as: the heat generated
27 about any sub-optimal conditions which are impeding reaching the requested
28 performance level.
33 gets a consistent experience the sysfs-platform_profile ABI document defines
42 expected behaviour, to the sysfs-platform_profile ABI documentation.
|
| /openbmc/u-boot/board/freescale/ls1021atwr/ |
| H A D | README | 2 --------
6 ------------------
8 is built on Layerscape architecture, the industry's first software-aware,
9 core-agnostic networking architecture to offer unprecedented efficiency
12 A member of the value-performance tier, the QorIQ LS1021A processor provides
14 enterprise networking applications. Incorporating dual ARM Cortex-A7 cores
15 running up to 1.0 GHz, the LS1021A processor delivers pre-silicon CoreMark
16 performance of over 6,000, as well as virtualization support, advanced
17 security features and the broadest array of high-speed interconnects and
18 optimized peripheral features ever offered in a sub-3 W processor.
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| /openbmc/linux/fs/squashfs/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
3 tristate "SquashFS 4.0 - Squashed file system support"
7 Read-Only File System). Squashfs is a highly compressed read-only
16 Squashfs is intended for general read-only filesystem use, for
51 Doing so can significantly improve performance because
88 decompression. Each one exhibits various trade-offs between
89 decompression performance and CPU and memory usage.
97 Traditionally Squashfs has used single-threaded decompression.
106 poor performance on parallel I/O workloads when using multiple CPU
110 using this option may improve overall I/O performance.
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