In one case generating callgraph output from a 24MB system-wide sampling
data file took 17.4 seconds on average. Profiling showed pmcstat
spending a lot of time in strcmp, due to hash collisions.
Replacing the XOR-only hash with FNV-1a reduces the run time for my
test by 40%.
Replace usage of "prison" with "jail", since that term has mostly dropped
out of use. Note once at the beginning that the "prison" term is equivalent,
but do not use it otherwise. [1]
Some grammar issues.
Some mdoc formatting fixes.
Consistently use \(em for em dashes, with spaces around it.
Avoid contractions.
Prefer ssh to telnet.
PR: docs/176832 [1]
Approved by: hrs (mentor)
eight years. The original concept was to improve the
corner case where you run out of ephemeral ports, but it
was causing performance problems and the mechanism
of limiting the number of time_wait sockets serves
the same purpose in the end.
Reviewed by: bz
Add support for different output formats:
1. The output file that was previously written is now called the raw format.
2. Add the vmdk output format to create VMDK images.
When the format is not given, the raw output format is assumed.
in SUBDIRS having tests added to it, which fails. Work around this by
checking to make sure tests exists before adding it to subdirs and
work to get the generated file fixed so we can rename Makefile.inc to
something else so it isn't automatically included by subdirs...
the legacy 8259A PICs.
- Implement an ICH-comptabile PCI interrupt router on the lpc device with
8 steerable pins configured via config space access to byte-wide
registers at 0x60-63 and 0x68-6b.
- For each configured PCI INTx interrupt, route it to both an I/O APIC
pin and a PCI interrupt router pin. When a PCI INTx interrupt is
asserted, ensure that both pins are asserted.
- Provide an initial routing of PCI interrupt router (PIRQ) pins to
8259A pins (ISA IRQs) and initialize the interrupt line config register
for the corresponding PCI function with the ISA IRQ as this matches
existing hardware.
- Add a global _PIC method for OSPM to select the desired interrupt routing
configuration.
- Update the _PRT methods for PCI bridges to provide both APIC and legacy
PRT tables and return the appropriate table based on the configured
routing configuration. Note that if the lpc device is not configured, no
routing information is provided.
- When the lpc device is enabled, provide ACPI PCI link devices corresponding
to each PIRQ pin.
- Add a VMM ioctl to adjust the trigger mode (edge vs level) for 8259A
pins via the ELCR.
- Mark the power management SCI as level triggered.
- Don't hardcode the number of elements in Packages in the source for
the DSDT. iasl(8) will fill in the actual number of elements, and
this makes it simpler to generate a Package with a variable number of
elements.
Reviewed by: tycho
sufficiently from upstream (including a full whitespace commit and large
portions rewritten) that this change does not move us further from the
upstream.
PR: docs/186608
Submitted by: Jamie Landeg-Jones <jamie@dyslexicfish.net>
MFC after: 3 days
It starts off being used to track the grammar for the number of disks
(singular vs plural) and then it is reused as the list of available disks.
Replace the variable with disks_grammar and move 'disk' and 'disks' to
msg_ vars so they can be translated in the future.
Submitted by: Allan Jude <freebsd@allanjude.com>
Reviewed by: roberto
MFC after: 2 weeks
Sponsored by: ScaleEngine Inc.
Set compress=lz4 for the entire pool, removing it from the individual
datasets
Remove exec=no from /usr/src, breaks the test suite.
Submitted by: Allan Jude <freebsd@allanjude.com>
Reviewed by: roberto
MFC after: 2 weeks
Sponsored by: ScaleEngine Inc.
encryption for swap, and optional gmirror for swap (which can be combined)
Submitted by: Allan Jude <freebsd@allanjude.com>
Requested By: roberto
Sponsored By: ScaleEngine Inc.
MFC after: 2 weeks
This includes decodes of recent Intel instructions, in particular
VT-x and related instructions. This allows the FBT provider to
locate the exit points of routines that include these new
instructions.
Illumos issues:
3414 Need a new word of AT_SUN_HWCAP bits
3415 Add isainfo support for f16c and rdrand
3416 Need disassembler support for rdrand and f16c
3413 isainfo -v overflows 80 columns
3417 mdb disassembler confuses rdtscp for invlpg
1518 dis should support AMD SVM/AMD-V/Pacifica instructions
1096 i386 disassembler should understand complex nops
1362 add kvmstat for monitoring of KVM statistics
1363 add vmregs[] variable to DTrace
1364 need disassembler support for VMX instructions
1365 mdb needs 16-bit disassembler support
This corresponds to Illumos-gate (github) version
eb23829ff08a873c612ac45d191d559394b4b408
Reviewed by: markj
MFC after: 1 week
with all bits set to 1 beyond the I/O permission bitmap.
Prior to this change accessing I/O ports [0xFFF8-0xFFFF] would trigger a
#GP fault even though the I/O bitmap allowed access to those ports.
For more details see section "I/O Permission Bit Map" in the Intel SDM, Vol 1.
Reviewed by: kib
Here, "suitably endowed" means that the System Control Coprocessor
(#15) has Performance Monitoring Registers, including a CCNT (Cycle
Count) register.
The CCNT register is used in a way similar to the TSC register in
x86 processors by the get_cyclecount(9) function. The entropy-harvesting
thread is a heavy user of this function, and will benefit from not
having to call binuptime(9) instead.
One problem with the CCNT register is that it is 32-bit only, so
the upper 32-bits of the returned number are always 0. The entropy
harvester does not care, but in case any one else does, follow-up
work may include an interrup trap to increment an upper-32-bit
counter on CCNT overflow.
Another problem is that the CCNT register is not readable in user-mode
code; in can be made readable by userland, but then it is also
writable, and so is a good chunk of the PMU system. For that reason,
the CCNT is not enabled for user-mode access in this commit.
Like the x86, there is one CCNT per core, so they don't all run in
perfect sync.
Reviewed by: ian@ (an earlier version)
Tested by: ian@ (same earlier version)
Committed from: WANDBOARD-QUAD
illumos, rather than using "1.0" everywhere.
Some of the translators use D functions that are not present in version
1.0 (e.g. inet_ntoa()) which can result in libdtrace crashing when running
scripts that restrict themselves to version 1.0
(e.g. with "-x version=1.0").
MFC after: 1 week
