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/linux/Documentation/admin-guide/mm/
H A Dnumaperf.rst10 as CPU cache coherence, but may have different performance. For example,
15 characteristics. Some memory may share the same node as a CPU, and others
21 +------------------+ +------------------+
22 | Compute Node 0 +-----+ Compute Node 1 |
24 +--------+---------+ +--------+---------+
26 +--------+---------+ +--------+---------+
28 +------------------+ +--------+---------+
36 performance when accessing a given memory target. Each initiator-target
48 # symlinks -v /sys/devices/system/node/nodeX/access0/targets/
49 relative: /sys/devices/system/node/nodeX/access0/targets/nodeY -> ../../nodeY
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/linux/tools/perf/Documentation/
H A Dperf-report.txt1 perf-report(1)
5 ----
6 perf-report - Read perf.data (created by perf record) and display the profile
9 ---
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H A Dperf-record.txt1 perf-record(1)
5 ----
6 perf-record - Run a command and record its profile into perf.data
9 --------
11 'perf record' [-e <EVENT> | --event=EVENT] [-a] <command>
12 'perf record' [-e <EVENT> | --event=EVENT] [-a] \-- <command> [<options>]
15 -----------
17 from it, into perf.data - without displaying anything.
23 -------
27 -e::
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/linux/tools/perf/
H A Dbuiltin-report.c1 // SPDX-License-Identifier: GPL-2.0
3 * builtin-report.c
23 #include "util/mem-events.h"
35 #include "util/mem-info.h"
40 #include <subcmd/parse-options.h>
41 #include <subcmd/exec-cmd.h>
42 #include "util/parse-events.h"
49 #include "util/time-util
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H A Dbuiltin-record.c1 // SPDX-License-Identifier: GPL-2.0
3 * builtin-record.c
6 * (or a CPU, or a PID) into the perf.data output file - for
11 #include "util/build-id.h"
12 #include <subcmd/parse-options.h>
14 #include "util/parse-events.h"
17 #include "util/arm64-fram
3698 struct perf_cpu cpu; record__mmap_cpu_mask_init() local
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/linux/arch/arm/
H A DKconfig1 # SPDX-License-Identifier: GPL-2.0
50 # https://github.com/llvm/llvm-project/commit/d130f402642fba3d065aacb506cb061c899558de
168 The ARM series is a line of low-power-consumption RISC chip designs
170 handhelds such as the Compaq IPAQ. ARM-based PCs are no longer
171 manufactured, but legacy ARM-based PC hardware remains popular in
179 relocations. The combined range is -/+ 256 MiB, which is usually
272 Patch phys-to-virt and virt-to-phys translation functions at
276 This can only be used with non-XIP MMU kernels where the base
322 bool "MMU-based Paged Memory Management Support"
325 Select if you want MMU-based virtualised addressing space
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/linux/tools/memory-model/Documentation/
H A Dexplanation.txt1 Explanation of the Linux-Kernel Memory Consistency Model
15 7. THE PROGRAM ORDER RELATION: po AND po-loc
18 10. THE READS-FROM RELATION: rf, rfi, and rfe
20 12. THE FROM-READS RELATION: fr, fri, and fre
22 14. PROPAGATION ORDER RELATION: cumul-fence
28 20. THE HAPPENS-BEFORE RELATION: hb
29 21. THE PROPAGATES-BEFORE RELATION: pb
30 22. RCU RELATIONS: rcu-link, rcu-gp, rcu-rscsi, rcu-order, rcu-fence, and rb
31 23. SRCU READ-SIDE CRITICAL SECTIONS
39 ------------
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/linux/drivers/pmdomain/
H A Dcore.c1 // SPDX-License-Identifier: GPL-2.0
3 * drivers/base/power/domain.c - Common code related to device power domains.
24 #include <linux/cpu.h>
42 __routine = genpd->dev_ops.callback; \
61 mutex_lock(&genpd->mlock); in genpd_lock_mtx()
67 mutex_lock_nested(&genpd->mlock, depth); in genpd_lock_nested_mtx()
72 return mutex_lock_interruptible(&genpd->mlock); in genpd_lock_interruptible_mtx()
77 return mutex_unlock(&genpd->mlock); in genpd_unlock_mtx()
88 __acquires(&genpd->slock) in genpd_lock_spin()
92 spin_lock_irqsave(&genpd->slock, flags); in genpd_lock_spin()
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/linux/drivers/scsi/lpfc/
H A Dlpfc_init.c4 * Copyright (C) 2017-2026 Broadcom. All Rights Reserved. The term *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
27 #include <linux/dma-mapping.h>
43 #include <linux/cpu.h>
69 /* Used when mapping IRQ vectors in a driver centric manner */
109 * lpfc_config_port_prep - Perform lpfc initialization prior to config port
118 * 0 - success.
119 * -ERESTART - requests the SLI layer to reset the HBA and try again.
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H A Dlpfc_attr.c4 * Copyright (C) 2017-2026 Broadcom. All Rights Reserved. The term *
6 * Copyright (C) 2004-2016 Emulex. All rights reserved. *
9 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
17 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
71 " trunk - link was \"low\" speed",
73 " existing trunk - link was \"middle\" speed",
75 " trunk - link was \"high\" speed",
76 "Attached to non-trunking port - F_Port",
77 "Attached to non-trunking port - N_Port",
79 "non-FLOGI frame received",
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