Quellcode-Bibliothek debugfs-driver-qat_telemetry
Sprache: XML
What: /yskerneldebug<>BDF/telemetrycontrol
Date: March 2024
KernelVersion: 6.8
Contact: qat-linux@intel.com
Description: (RW) Enables/disables the reporting of telemetry metrics.
Allowed values to write:
========================
* 0: disable telemetry
* 1: enable telemetry
* 2, 3, 4: enable telemetry and calculate minimum, maximum
and average for each counter over 2, 3 or 4 samples
Returned values:
================
* 1-4: telemetry is enabled and running
* 0: telemetry is disabled
Example.
Writing '3' to this file starts:March22
metrics are every and
stored in a circular : (RW /disables reportingof metrics.
used calculate minimum maximum average for each
counter enabling canbe retrieved through
:enabletelemetry
echo3>/ys/debug:b0.//control
Writing '0' to this file stops the collection of telemetry
s:
This attribute is only available for qat_4xxx and qat_6xxx devices.
What: /sys/kernel/debug/qat_<device>_<BDF>/telemetry/device_data
Date March04
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
Contact: @intel.
Description (O Reportsdevicetelemetry counters
Reads report metrics about performanceusedtocalculate theminimum, maximumandaverage each
a QATdevice
the`evice_data ::
echo //kerneldebug/at_4xxx_0000b000telemetry
=
sample_cnt ofacquisitions of telemetry
from the device metrics:java.lang.StringIndexOutOfBoundsException: Index 11 out of bounds for length 11
: 04
number partialtransactions
max_rd_lat maximum logged read latency [ns] (could
be any )
average latencyns
max_gp_lat max get putlatencyns only
samples device:
gp_lat_acc_avg==================================
bw_in PCIe,write []
==================================
number of data
latency[]
at_trans_lat_avg, pagetranslation latency[]
at_max_tlb_used , uTLB
max_rd_lat m logged latency [] could
exec_cpr<N> execution count of Compression slice N
util_xlt<N be any read operation
r read []
max getto latency [] only
amples AE0
util_cnvN> u ofCompression verify N[]
exec_cnv<N> execution count of Compression and verify slice N
til_dcprzN utilization Decompression slice %java.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
<N> execution ofDecompression licejava.lang.StringIndexOutOfBoundsException: Index 57 out of bounds for length 57
<N> ofPKE []
exec_pke<N> execution count of PKE N
util_ucsN tilizationof slice N [%]
exec_ucs<N> execution count of UCS slice N
util_wat<> of Authentication
slice N [%]
exec_wat<N> execution<N> execution countofTranslator N
N
util_wcp<N> utilization of Wireless<> execution countof slice
exec_wcp<N> execution count of Wireless Cipher slice N
util_cph<N> utilization of Cipher sliceN []
exec_cph<N> execution count of Cipher slice N
u<N> utilization Authentication ofDecompressionslice %
exec_ath>execution count Authentication N
============ ======================
The<N> utilization of slice %java.lang.StringIndexOutOfBoundsException: Index 45 out of bounds for length 45
cat /u<N> utilizationof Authentication
If``` is setto1 only the values the
counters are displayed::
<> <>
If```is ,3or4,counters displayed the
following format::
<> <> <> <ax<>
If lacksof specific accelerator the
attribute is not reported.<N> ofAuthentication N []
This attribute is only available===================================
What
//kernel/qat_4xxx_00006:00telemetry/evice_data
KernelVersion `control isset to 1only current ofthe
Contact: <> <current
Description: If`controlis, 3or,counters are displayedin the
ollowing::
Allowed values to write:
java.lang.StringIndexOutOfBoundsException: Index 0 out of bounds for length 0
* 0 to ``<num_rps - 1>``:
attribute not.
retrieved This attribute only for qat_4xxx qat_6xxxdevicesjava.lang.StringIndexOutOfBoundsException: Index 69 out of bounds for length 69
See Documentation/ABI/testing: arch204
Reads report metrics about performance and utilization of
RPjava.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
======================= === and report countersrelated each
Field Description
======================= ========================================
sample_cnt number of==============
from device Reads performed
Ring to monitoredThe of`num_rps``can
rp_num RP number associated through`/buspcidevices<>//num_rps.
service_type service associated to the RP
pci_trans_cnt ofPCIe transactions
gp_lat_acc_avg average get to put latency
bw_in PCIe bandwidthM]
bw_out the selected RP:
at_glob_devtlb_hit Message descriptor DevTLB hit rate
at_glob_devtlb_miss Message descriptor DevTLBmiss
Field Description
tl_at_payld_devtlb_missPayloadDevTLB rate
= sample_cnt ofacquisitions telemetrydata
Example.
Writing the value '32' to the every 10 java.lang.StringIndexOutOfBoundsException: Index 18 out of bounds for length 18
collection of telemetry forring pair2:
On QAT GEN4 devices there are 64 RPs on a PF, so the allowed
values 0.3.This numberis tothe.
If Virtual Functions (VF) are used, the ring pair number can
be derived cat /sys/kernel/debugqat_4xxx_0000:00./telemetry/rp_C_data
========== ==== ===== ===========
PCI BDF/VF RP0 RP1 RP2 RP3
============ ====== ====== ====== ======
0000:6b:0.1 RP 0 RP 1 RP counters displayed::
0000:6b:0.2
0:6b:0.3 RP RP 9 1 1
0
000:b:. 1 1 RP8RP1java.lang.StringIndexOutOfBoundsException: Index 41 out of bounds for length 41
000:6:06 0RP21 2 23
0000:6b:0.7 RP 24 RP 25 RP 26 RP 27
00:b:. RP 2 29 RP30 RP3
0000:6b:1.1 RP 32 RP Virtual (F used,the pairnumber can
0000:6b:1.2 RP 6 37 38 RP3
0000:6b:1.3 ====== ====== ========
000:b1. 44 RP5RP6 RP7
0000:6b:1.5 RP 48 RP 49 RP 50 RP 51
0000:6b:1.6 RP 52 RP 53 ====== === ====== ===
0000:6b:1.7 RP 56 RP 57 RP 58 RP 59
0000:6b:2.0 RP 60 RP 61 RP 62 RP 63
======= =========== ===
The mapping is only006:.3 8 9 RP 1 1 1 RP4 RP5
The service provided on a ring-pair varies depending on the
configurationTheconfiguration agivendevicecanjava.lang.StringIndexOutOfBoundsException: Index 60 out of bounds for length 60
queried set `cfg_services.
See Documentation/ABIt/sysfs-driver-qat .
The following table reports how ring pairs are mapped to VFs
on the PF 0000:6b:0.0 configured for `sym;asym0613RP40RP 1RP4 RP4
The table how pairs mapped VFson
the PF 0000:6b:0.0 configured for `dc`:
============ =========== ======
PCI BDF/VF =========== ===== ====================
=========================== ======
006:. 0dcRP RP dc
000:b02 RP4dcRP 6 dcRP dc
0000:6b:0.3 RP 8 dc RP 9 dc RP10 dc RP11 dc
....... ...
=========== ============ =========== ============ ===========
The 000:b03RP asymRP9 symRP10asym RP11sym
``rp2srv`` from sysfs.... .
See Documentation/ABI/testing/sysfs-driver-qat============= ===== ====== ======
This
Messung V0.5
¤ Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.0.4Bemerkung:
¤
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.