| /OK3568_Linux_fs/kernel/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/
[all …]
|
| H A D | cpufreq.rst | 1 .. SPDX-License-Identifier: GPL-2.0
7 CPU Performance Scaling
15 The Concept of CPU Performance Scaling
20 Operating Performance Points or P-states (in ACPI terminology). As a rule,
24 time (or the more power is drawn) by the CPU in the given P-state. Therefore
29 as possible and then there is no reason to use any P-states different from the
30 highest one (i.e. the highest-performance frequency/voltage configuration
38 put into different P-states.
41 capacity, so as to decide which P-states to put the CPUs into. Of course, since
44 to as CPU performance scaling or CPU frequency scaling (because it involves
[all …]
|
| /OK3568_Linux_fs/kernel/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)
[all …]
|
| /OK3568_Linux_fs/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"
51 expected to specify a pre-computed time using the above option.
66 Select the Operating Performance Point(OPP) for the MPU voltage
80 Select the Operating Performance Point(OPP) for the DSPEVE voltage
95 bool "OPP HIGH"
97 This config option enables High OPP for DSPEVE.
104 Select the Operating Performance Point(OPP) for the IVA voltage
119 bool "OPP HIGH"
[all …]
|
| /OK3568_Linux_fs/kernel/drivers/gpu/arm/midgard/ |
| H A D | mali_midg_regmap.h | 3 * (C) COPYRIGHT 2010-2017 ARM Limited. All rights reserved.
12 * Boston, MA 02110-1301, USA.
32 #define SUSPEND_SIZE 0x008 /* (RO) Fixed-function suspend buffer
53 #define PRFCNT_SAMPLE_COMPLETED (1 << 16) /* Set when a performance count sample has completed. */
68 #define GPU_FAULTADDRESS_HI 0x044 /* (RO) GPU exception fault address, high word */
74 #define PRFCNT_BASE_LO 0x060 /* (RW) Performance counter memory region base address, low w…
75 #define PRFCNT_BASE_HI 0x064 /* (RW) Performance counter memory region base address, high …
76 #define PRFCNT_CONFIG 0x068 /* (RW) Performance counter configuration */
77 #define PRFCNT_JM_EN 0x06C /* (RW) Performance counter enable flags for Job Manager */
78 #define PRFCNT_SHADER_EN 0x070 /* (RW) Performance counter enable flags for shader cores */
[all …]
|
| /OK3568_Linux_fs/kernel/drivers/soc/rockchip/ |
| H A D | Kconfig | 1 # SPDX-License-Identifier: GPL-2.0-only
42 Set system_serial_low/high from eFuse ID.
51 special additional settings registers for a lot of soc-components.
58 This driver support Decompress IP built-in Rockchip SoC, support
66 This driver support user invokes the Decompress IP built-in Rockchip SoC, support
106 In some cases, there are too much userspace high priority RT threads, which
113 bool "Rockchip performance configuration support"
117 and performance.
120 int "Rockchip performance default level"
125 Select default performance level:
[all …]
|
| /OK3568_Linux_fs/kernel/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
[all …]
|
| /OK3568_Linux_fs/u-boot/arch/arm/mach-omap2/ |
| H A D | Kconfig | 79 The AM335x high performance SOC features a Cortex-A8
88 The AM335x high performance SOC features a Cortex-A8
107 The AM43xx high performance SOC features a Cortex-A9
108 ARM core, a quad core PRU-ICSS for industrial Ethernet
123 The AM335x high performance SOC features a Cortex-A8
124 ARM core, a dual core PRU-ICSS for industrial Ethernet
140 If a high secure (HS) device type is being used, this config
143 authenticated) and the code. See the doc/README.ti-secure
151 Reserved EMIF region start address. Set to "0" to auto-select
172 source "arch/arm/mach-omap2/omap3/Kconfig"
[all …]
|
| /OK3568_Linux_fs/yocto/meta-openembedded/meta-oe/recipes-extended/libqb/ |
| H A D | libqb_2.0.6.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"
|
| /OK3568_Linux_fs/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.
47 # If set, the workarounds for these ARM errata are applied early during U-Boot
49 # applied; no CPU-type/version detection exists, unlike the similar options in
221 This should be enabled if U-Boot needs to communicate with system
239 bool "Build U-Boot using the Thumb instruction set"
242 Use this flag to build U-Boot using the Thumb instruction set for
574 This enables support for Broadcom ARM-based set-top box
[all …]
|
| /OK3568_Linux_fs/kernel/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.
[all …]
|
| /OK3568_Linux_fs/kernel/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")
[all …]
|
| /OK3568_Linux_fs/kernel/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
[all …]
|
| /OK3568_Linux_fs/kernel/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
[all …]
|
| /OK3568_Linux_fs/external/mpp/doc/design/ |
| H A D | 1.mpp_design.txt | 5 The main purpose of mpp is to provide very high performance, high flexibility
13 The first one is vcodec_service/vpu_service/mpp_service which is a high
14 performance stateless frame base hardware kernel driver. This driver supports
32 2. High Performance
37 3. High Flexibility
46 +---------------------------------------+
50 +---------------------------------------+
52 +-------------------- MPP ----------------------+
54 | +-------------------------+ +--------+ |
59 | +-------------------------+ | | |
[all …]
|
| /OK3568_Linux_fs/kernel/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
62 decompression. Each one exhibits various trade-offs between
63 decompression performance and CPU and memory usage.
70 Traditionally Squashfs has used single-threaded decompression.
78 poor performance on parallel I/O workloads when using multiple CPU
82 using this option may improve overall I/O performance.
[all …]
|
| /OK3568_Linux_fs/yocto/meta-openembedded/meta-python/recipes-devtools/python/ |
| H A D | python3-pandas_1.4.2.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"
14 ${PYTHON_PN}-numpy-native ${PYTHON_PN}-cython-native \
17 CFLAGS:append:toolchain-clang = " -Wno-error=deprecated-declarations"
20 ${PYTHON_PN}-json \
21 ${PYTHON_PN}-numpy \
22 ${PYTHON_PN}-dateutil \
23 ${PYTHON_PN}-dateutil-zoneinfo \
[all …]
|
| /OK3568_Linux_fs/yocto/poky/meta/recipes-extended/lighttpd/ |
| H A D | lighttpd_1.4.67.bb | 1 SUMMARY = "Lightweight high-performance web server"
3 …high-performance web server is designed and optimized for high performance environments. With a sm…
6 LICENSE = "BSD-3-Clause"
10 RDEPENDS:${PN} = "lighttpd-module-dirlisting \
11 lighttpd-module-indexfile \
12 lighttpd-module-staticfile"
13 RRECOMMENDS:${PN} = "lighttpd-module-access \
14 lighttpd-module-accesslog"
16 SRC_URI = "http://download.lighttpd.net/lighttpd/releases-1.4.x/lighttpd-${PV}.tar.xz \
30 PACKAGECONFIG[libev] = "-Dwith_libev=true,-Dwith_libev=false,libev"
[all …]
|
| /OK3568_Linux_fs/kernel/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
17 functionalities in various areas. pv-ops allows for optimizations at run
18 time by enabling binary patching of the low-ops 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
29 are called frequently and are performance critical. The overhead is
32 - a set of macros for hand written assembly code
[all …]
|
| /OK3568_Linux_fs/kernel/Documentation/scheduler/ |
| H A D | sched-energy.rst | 6 ---------------
25 please refer to its documentation (see Documentation/power/energy-model.rst).
29 -----------------------------
32 - energy = [joule] (resource like a battery on powered devices)
33 - power = energy/time = [joule/second] = [watt]
38 performance [inst/s]
39 --------------------
45 -----------
48 while still getting 'good' performance. It is essentially an alternative
49 optimization objective to the current performance-only objective for the
[all …]
|
| /OK3568_Linux_fs/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.
[all …]
|
| /OK3568_Linux_fs/kernel/arch/nds32/ |
| H A D | Kconfig.cpu | 1 # SPDX-License-Identifier: GPL-2.0-only
27 enhance system performance by reducing the context switch
39 However, performance loss in float point calculations is
43 say N to prevent performance loss.
50 A set of Zero-Overhead Loop mechanism is provided to reduce the
51 instruction fetch and execution overhead of loop-control instructions.
102 prompt "Paging -- page size "
111 bool "Disable I-Cache"
117 bool "Disable D-Cache"
123 bool "Force write through D-cache"
[all …]
|
| /OK3568_Linux_fs/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.
[all …]
|
| /OK3568_Linux_fs/kernel/security/ |
| H A D | Kconfig.hardening | 1 # SPDX-License-Identifier: GPL-2.0-only
12 flaws, this plugin is available to identify and zero-initialize
23 def_bool $(cc-option,-ftrivial-auto-var-init=pattern)
26 def_bool $(cc-option,-ftrivial-auto-var-init=zero)
29 # Clang 16 and later warn about using the -enable flag, but it
31 …def_bool $(cc-option,-ftrivial-auto-var-init=zero -enable-trivial-auto-var-init-zero-knowing-it-wi…
47 variables initialized), but the performance impact depends
64 bool "zero-init structs marked for userspace (weak)"
68 Zero-initialize any structures on the stack containing
71 exposures, like CVE-2013-2141:
[all …]
|