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Calibration Data - Denverton
----------------------------
Following sections include sample calibration data measured on
Denverton server at Intel SH labs.
A 2-Node Atom Denverton testing took place at Intel Corporation carefully
adhering to FD.io CSIT best practices.
Linux cmdline
~~~~~~~~~~~~~
::
$ cat /proc/cmdline
BOOT_IMAGE=/boot/vmlinuz-4.15.0-36-generic root=UUID=d3cfffd0-1e77-423a-a53a-a117199b6025 ro intel_iommu=on iommu=pt isolcpus=1-11 nohz_full=1-11 rcu_nocbs=1-11 default_hugepagesz=1G hugepagesz=1G hugepages=8 intel_pstate=disable nmi_watchdog=0 numa_balancing=disable tsc=reliable nosoftlockup quiet splash vt.handoff=7
Linux uname
~~~~~~~~~~~
::
$ uname -a
Linux 4.15.0-36-generic #39~16.04.1-Ubuntu SMP Tue Sep 25 08:59:23 UTC 2018 x86_64 x86_64 x86_64 GNU/Linux
System-level Core Jitter
~~~~~~~~~~~~~~~~~~~~~~~~
::
$ sudo taskset -c 2 /home/testuser/pma_tools/jitter/jitter -c 2 -i 20
Linux Jitter testing program version 1.9
Iterations=20
The pragram will execute a dummy function 80000 times
Display is updated every 20000 displayUpdate intervals
Thread affinity will be set to core_id:2
Timings are in CPU Core cycles
Inst_Min: Minimum Excution time during the display update interval(default is ~1 second)
Inst_Max: Maximum Excution time during the display update interval(default is ~1 second)
Inst_jitter: Jitter in the Excution time during rhe display update interval. This is the value of interest
last_Exec: The Excution time of last iteration just before the display update
Abs_Min: Absolute Minimum Excution time since the program started or statistics were reset
Abs_Max: Absolute Maximum Excution time since the program started or statistics were reset
tmp: Cumulative value calcualted by the dummy function
Interval: Time interval between the display updates in Core Cycles
Sample No: Sample number
Inst_Min Inst_Max Inst_jitter last_Exec Abs_min Abs_max tmp Interval Sample No
177530 196100 18570 177530 177530 196100 4156751872 3556820054 1
177530 200784 23254 177530 177530 200784 321060864 3556897644 2
177530 196346 18816 177530 177530 200784 780337152 3556918674 3
177530 195962 18432 177530 177530 200784 1239613440 3556847928 4
177530 195960 18430 177530 177530 200784 1698889728 3556860214 5
177530 198824 21294 177530 177530 200784 2158166016 3556854934 6
177530 198522 20992 177530 177530 200784 2617442304 3556862410 7
177530 196362 18832 177530 177530 200784 3076718592 3556851636 8
177530 199114 21584 177530 177530 200784 3535994880 3556870846 9
177530 197194 19664 177530 177530 200784 3995271168 3556933584 10
177530 198272 20742 177536 177530 200784 159580160 3556869044 11
177530 197586 20056 177530 177530 200784 618856448 3556903482 12
177530 196072 18542 177530 177530 200784 1078132736 3556825540 13
177530 196354 18824 177530 177530 200784 1537409024 3556881664 14
177530 195906 18376 177530 177530 200784 1996685312 3556839924 15
177530 199066 21536 177530 177530 200784 2455961600 3556860220 16
177530 196968 19438 177530 177530 200784 2915237888 3556871890 17
177530 195896 18366 177530 177530 200784 3374514176 3556855338 18
177530 196020 18490 177530 177530 200784 3833790464 3556839820 19
177530 196030 18500 177530 177530 200784 4293066752 3556889196 20
Memory Bandwidth
~~~~~~~~~~~~~~~~
::
$ sudo /home/testuser/mlc --bandwidth_matrix
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --bandwidth_matrix
Using buffer size of 100.000MB/thread for reads and an additional 100.000MB/thread for writes
Measuring Memory Bandwidths between nodes within system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Memory node
Socket 0
0 28157.2
::
$ sudo /home/testuser/mlc --peak_injection_bandwidth
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --peak_injection_bandwidth
Using buffer size of 100.000MB/thread for reads and an additional 100.000MB/thread for writes
Measuring Peak Injection Memory Bandwidths for the system
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using traffic with the following read-write ratios
ALL Reads : 28150.0
3:1 Reads-Writes : 27425.0
2:1 Reads-Writes : 27565.4
1:1 Reads-Writes : 27489.3
Stream-triad like: 26878.2
::
$ sudo /home/testuser/mlc --max_bandwidth
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --max_bandwidth
Using buffer size of 100.000MB/thread for reads and an additional 100.000MB/thread for writes
Measuring Maximum Memory Bandwidths for the system
Will take several minutes to complete as multiple injection rates will be tried to get the best bandwidth
Bandwidths are in MB/sec (1 MB/sec = 1,000,000 Bytes/sec)
Using all the threads from each core if Hyper-threading is enabled
Using traffic with the following read-write ratios
ALL Reads : 30032.40
3:1 Reads-Writes : 27450.88
2:1 Reads-Writes : 27567.46
1:1 Reads-Writes : 27501.90
Stream-triad like: 27124.82
Memory Latency
~~~~~~~~~~~~~~
::
$ sudo /home/testuser/mlc --latency_matrix
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --latency_matrix
Using buffer size of 2000.000MB
Intel(R) Memory Latency Checker - v3.5
Measuring idle latencies (in ns)...
Memory node
Socket 0
0 93.1
::
$ sudo /home/testuser/mlc --idle_latency
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --idle_latency
Using buffer size of 200.000MB
Each iteration took 186.7 core clocks ( 93.4 ns)
::
$ sudo /home/testuser/mlc --loaded_latency
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --loaded_latency
Using buffer size of 100.000MB/thread for reads and an additional 100.000MB/thread for writes
Measuring Loaded Latencies for the system
Using all the threads from each core if Hyper-threading is enabled
Using Read-only traffic type
Inject Latency Bandwidth
Delay (ns) MB/sec
==========================
00000 135.35 27186.0
00002 135.47 27176.9
00008 134.97 27063.3
00015 134.41 26825.6
00050 139.83 28419.1
00100 124.28 22616.4
00200 109.40 14139.8
00300 104.56 10275.1
00400 102.02 8120.0
00500 100.38 6751.4
00700 98.30 5124.9
01000 96.56 3852.7
01300 95.65 3149.0
01700 95.06 2585.4
02500 94.43 1988.8
03500 94.16 1621.1
05000 93.95 1343.1
09000 93.65 1052.6
20000 93.43 851.7
L1/L2/LLC Latency
~~~~~~~~~~~~~~~~~
::
$ sudo /home/testuser/mlc --c2c_latency
Intel(R) Memory Latency Checker - v3.5
Command line parameters: --c2c_latency
Measuring cache-to-cache transfer latency (in ns)...
Local Socket L2->L2 HIT latency 8.8
Local Socket L2->L2 HITM latency 8.8
.. include:: ../introduction/test_environment_sut_meltspec_dnv.rst
|
