|
KarimAllah Ahmed
@
Karim_Allah
Germany, Dresden
|
|
Linux Kernel Engineer @ EC2 - Amazon - working on the Nitro virtualization stack. Opinions are my own.
|
|
|
5.504
Tweetovi
|
126
Pratim
|
542
Osobe koje vas prate
|
| Tweetovi |
|
KarimAllah Ahmed
@Karim_Allah
|
8 h |
|
Just a teaser, some IPI benchmarks show 50% reduction in latency :P
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
9 h |
|
This is still so funny :D
They care that much about this stupid medal ... but the billions of euros of business between German companies and the Egyptian government is OK :D
I really enjoy watching these kinds of super calculated and useless protests :)
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
29. sij |
|
I really love reading specs. It took me a while to realize that I have no idea what did I learn after reading this sentence :D
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
29. sij |
|
"A detected uncorrected error is uncontainable if it might be uncontained. A detected uncorrected error is
containable if it is not uncontainable. If the component cannot determine whether a detected error is
uncontainable or containable, it must treat it as uncontainable."
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
26. sij |
|
here is some art #dresden pic.twitter.com/RREhXwjVne
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
26. sij |
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
26. sij |
|
Lol :) I was wondering how did u even know the dealer .. then I noticed the big poster on one of the photos :D the person that took the photo confirmed this is the right place, but I did not see it myself (and don’t know him personally) to confirm :D
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
26. sij |
|
I had to delete the previous tweet, I did not realize that one photo had the name of an auto-dealer. Since I can not confirm it personally, I can not risk trashing wrong people. I will probably reupload the photos that does not have this auto-dealer name just to enjoy the art :)
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
24. sij |
|
Super proud of my president
nicht!
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
22. sij |
|
The interesting thing is that the first attack was carried out by a 17 and 18 years old .. and the second attack was carried out by a 14 years old! What kind of parenting would lead to this misery!
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
22. sij |
|
The same 11-year old girl was a victim of a racism attack twice in the past 2 months. 1) tag24.de/nachrichten/se… 2) aa.com.tr/en/europe/girl…
She must be very unlucky. Only 1 in 3 people in Dresden are racists, not sure how did she encounter those!
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
19. sij |
|
As a fresh graduate from Egypt, I had a phone interview (US company) that I could not make on time. I emailed the recruiter to apologize and resched the interview .. no reply. I guess, a revolution erupting in Egypt and gov deciding to turn off the internet was not a good excuse twitter.com/harriepw/statu…
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
13. sij |
|
شيت .. حصل إزاي ده؟ كنت تأجيل؟
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
2. sij |
|
This seems like the perfect position to see that hawk coming :D
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
20. pro |
|
Super awesome work! @mhm89 twitter.com/abobeih/status…
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
18. pro |
|
True, but this specific workload will be affected similarly (not quiet) on baremetal as well.
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
17. pro |
|
We also ran a range of benchmarks/workloads and 1 GiB EPTs was always slightly better than 2 MiB and both were significantly better than 4 KiB. If someone can think of any workload/guest-config that might break this, I would be happy to test it as well :)
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
16. pro |
|
And some of our PCI re-init optimizations:
lore.kernel.org/patchwork/patc…
lore.kernel.org/patchwork/patc…
lore.kernel.org/patchwork/patc…
... obviously we have a few more like bringing up VFs on parallel across all cores, skipping parts of VFs init, etc .. we are regularly upstreaming these as well.
|
||
|
|
||
|
KarimAllah Ahmed
@Karim_Allah
|
16. pro |
|
The explanation of how we manage memory in our setup is described in this cover letter:
lkml.org/lkml/2019/1/31…
Obviously a bit of an over simplification, but it provides the basic idea.
|
||
|
|
||
| KarimAllah Ahmed proslijedio/la je tweet | ||
|
Peter Corless 🌎☮
@PeterCorless
|
6. pro |
|
We were! scylladb.com/2019/12/05/is-…
|
||
|
|
||