<div dir="ltr"><div dir="ltr"><div>Hi,</div><div><br></div><div>I guess
this is the appropriate time for you to target Competitors IoT Install Base
with Service Providers/Partners/Resellers as for your strategic marketing
and channel opportunities for 2019.</div><div><br></div><div>We also have
distinctive Types Of development customers like: IBM IoT Users, AWS IoT
Users, Cisco IoT Users, Prophet IoT Users , SAP IoT Users , Siemens IoT
Users , PTC IoT Users, Autodesk IoT Users, Salesforce IoT
Users </div><div><br></div><div>Kindly review and let me know if we can
connect or let me know if I can share more insights on
this.</div><div><br></div><div>Await your
response!</div><div><br></div><div>Warm Regards</div><div>Angie
Campos</div><div>Demand
Generation</div><div><br></div><div><br></div><div><br></div><div>If you
don't want to include yourself in our mailing list, please reply back
“Leave Out"" in a subject
line"</div><div><br></div></div></div>
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Dear Sir,
With reference to your PO NO. FINS/1819/NSK/PO438, the material is ready at our work.
Please find attached herewith Proforma invoice for your reference. You are requested to please make the payment so that we can proceed further.
Thanks & Regards,
Ms. Meena Chavan,
Account’s Manager - 8097070830
WESMEC ENGINEERING PVT.LTD
Good day,
First, I apologize for the information overload below. I just wanted to
make sure to provided as much detail as possible.
I do kernel development as a hobby for XDA and other communities. For a
given device that we support, we tend to follow the same sched changes as
Google and will pull in changes from upstream. One of the devices we dev
for is the OnePlus6 and 6T. It uses the same SD845 SOC as the P3. Long
story short, I started to notice an issue that we did not have on our
Oneplus5 Device (SD835 same as the Pixel 2). When boosting
top-app/schedtune.boost to 50 for example, it would appear to boost both
small and big cores. With a boost of 50, this means both clusters would be
running at 1766MHz and above. But this behavior was inconsistent. I could
reboot, and sometimes only the big cluster would appear to be affected by
the stune boost but it would seem that after hours/days of up time, the
issue would occur again and both clusters would be affected.
So I started kernel tracing trying to narrow down a culprit. One of the
things I noticed between a trace that had the bug captured and a trace
where the bug isn't occurring, is the boost margin assigned each cpu. I
could tell this bug would occur when the boosted task could easily fit on a
big core due to low utilization and margin assigned to them. Also, there
was not any other noticeable reason I could discern. Below is an example of
what I am referring to. Also note that I had a friend with a Pixel 3
confirm it had the problem as well before writing here and the logs/info
below are taken from a P3.
Kernel version:
Linux version 4.9.124-gdff097c-ab5226088 (android-build@abfarm934)
(Android clang version 5.0.1
(https://us3-mirror-android.googlesource.com/toolchain/clang
00e4a5a67eb7d626653c23780ff02367ead74955)
(https://us3-mirror-android.googlesource.com/toolchain/llvm
ef376ecb7d9c1460216126d102bb32fc5f73800d) (based on LLVM 5.0.1svn)) #0
SMP PREEMPT Fri Jan 11 21:28:03 UTC 2019
Extracted from PQ2A.190305.002 factory images
Events used:
sched_boost_cpu
sched:sched_find_best_target
sched:sched_boost_task
sched:sched_load_balance
sched:sched_migrate_task
sched:sched_switch
sched:sched_wakeup_new
sched:sched_waking
sched:sched_task_util
sched:sched_tune_boostgroup_update
sched:sched_tune_tasks_update
Bug (no interaction):
<idle>-0 [000] d.H9 12042.557751: sched_boost_cpu: cpu=0
util=22 margin=100
<idle>-0 [000] d.H9 12042.557756: sched_boost_cpu: cpu=1
util=26 margin=0
<idle>-0 [000] d.H9 12042.557759: sched_boost_cpu: cpu=2
util=0 margin=0
<idle>-0 [000] d.H9 12042.557761: sched_boost_cpu: cpu=3
util=4 margin=0
<idle>-0 [000] d.H9 12042.557764: sched_boost_cpu: cpu=4
util=0 margin=0
<idle>-0 [000] d.H9 12042.557767: sched_boost_cpu: cpu=5
util=0 margin=0
<idle>-0 [000] d.H9 12042.557770: sched_boost_cpu: cpu=6
util=0 margin=102
<idle>-0 [000] d.H9 12042.557772: sched_boost_cpu: cpu=7
util=0 margin=102
Bug during interactions:
<...>-640 [000] d.H8 12044.737723: sched_boost_cpu: cpu=0
util=33 margin=495
<...>-640 [000] d.H8 12044.737725: sched_boost_cpu: cpu=1
util=22 margin=0
<...>-640 [000] d.H8 12044.737727: sched_boost_cpu: cpu=2
util=47 margin=0
<...>-640 [000] d.H8 12044.737728: sched_boost_cpu: cpu=3
util=12 margin=0
<...>-640 [000] d.H8 12044.737730: sched_boost_cpu: cpu=4
util=119 margin=0
<...>-640 [000] d.H8 12044.737732: sched_boost_cpu: cpu=5
util=83 margin=0
<...>-640 [000] d.H8 12044.737736: sched_boost_cpu: cpu=6
util=0 margin=512
<...>-640 [000] d.H8 12044.737738: sched_boost_cpu: cpu=7
util=2 margin=511
NO Bug during interactions:
ndroid.settings-10354 [004] d.hb 117.480930: sched_boost_cpu: cpu=0
util=50 margin=0
ndroid.settings-10354 [004] d.hb 117.480932: sched_boost_cpu: cpu=1
util=184 margin=0
ndroid.settings-10354 [004] d.hb 117.480933: sched_boost_cpu: cpu=2
util=66 margin=0
ndroid.settings-10354 [004] d.hb 117.480934: sched_boost_cpu: cpu=3
util=46 margin=0
ndroid.settings-10354 [004] d.hb 117.480935: sched_boost_cpu: cpu=4
util=119 margin=452
ndroid.settings-10354 [004] d.hb 117.480936: sched_boost_cpu: cpu=5
util=2 margin=0
ndroid.settings-10354 [004] d.hb 117.480936: sched_boost_cpu: cpu=6
util=112 margin=0
ndroid.settings-10354 [004] d.hb 117.480937: sched_boost_cpu: cpu=7
util=7 margin=0
When you take a closer look at what is running on the small cores, I
started to notice something else. With the event:
sched_tune_tasks_update
I noticed a pattern with tasks that had "boost=0 max_boost=50". When the
bug is occurring, you would see small cores running tasks with "boost=0
max_boost=50" and when no bug, only big cores would have tasks with
"boost=0 max_boost=50". I have not been able to track down why sometimes
these tasks that received a boost as some point are running on small cores.
I also cannot discern why this issue has been inconsistent. I wanted to
give a heads up and would appreciate any assistance or information anyone
here might have with regards to a possible solution. Thanks for the great
work! I look forward to hearing back from you guys.
I have uploaded the a number of traces captured to my G Drive here:
https://drive.google.com/open?id=11YTlGezAMllmlVr9CtMNCz56CTfrJGBd
If there is a better method, please let me know.
Regards,
Zachariah Kennedy
Good Day!
Please see attached copies of final documents that should be couriered this week by DHL to us.
The details are below:
kindly prepare the layouts and send to us also..
after which kindly send us
DHL tracking :
include all the invoices incase of remittance.
All the best,
Elisa Southon
Nick kim
Transaction Manager,
Allodu cables LLC.
Tel.:- +551 6 5985128
Fax.:- +551 6 5915102