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Prikvačeni tweet
The replies to this thread were gold. So I started collecting them in a http://README.md : https://github.com/mfleming/performance-resources/blob/master/README.md … Please submit pull requests with your favourite performance: - blogs - books - mailing lists - social accounts Thanks
https://twitter.com/fleming_matt/status/1146456783134896128 …Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Loved this. Performance by design.https://twitter.com/nelhage/status/1224144074808033281 …
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Perf Twitter, which is the FIRST hardware event you sample when analysing CPU-bound workloads?
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Matt Fleming proslijedio/la je Tweet
The full set of my 2019 graduate-level computer architecture course lectures at ETH Zurich is online, along with all lecture videos, slides, and course materials: Course schedule: https://lnkd.in/egEFGer Youtube playlist: https://lnkd.in/eaR7J_T First…https://lnkd.in/ewnHEBC
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Matt Fleming proslijedio/la je Tweet
You can use: perf record -e '{cycles,instructions}:P' perf report And get a group view, i.e. two columns, one for each counter, i/c like in 'perf stat' isn't there yet, but should, at the bucketization criteria used :-/
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Yo
@acmel is there a way to get perf to display instruction counts and cycles on the same perf report screen to get an idea which instructions have high CPI?Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Matt Fleming proslijedio/la je Tweet
And here there are also the slides of my (last!) talk, about the tuning guide for
@SUSE SLE15.1 on@AMDServer EPYC2 platforms. Will happen later today (16:00, the last one of the Virtualization & IaaS Devroom) https://fosdem.org/2020/schedule/event/vai_reaching_epyc/attachments/slides/3950/export/events/attachments/vai_reaching_epyc/slides/3950/Reaching_EPYC_Virtualization_Performance.pdf … – mjesto: S.H.1.309Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Matt Fleming proslijedio/la je Tweet
Mostly useless but interesting trick: .NET Core knows how to inline structs and how to optimize them eg. by using SIMD registers. While case below is really a microoptimization, first method is ~20% faster than the second.pic.twitter.com/5A8XZb3jtD
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Matt Fleming proslijedio/la je Tweet
Slides of my talk (happening later today, at 13:20,
@fosdem , room UB2.147) about using MMTest for benchmarking virtualization, i.e., running multiple benchmarks in multiple VMs, at the same time and synchronizing their iterations: https://fosdem.org/2020/schedule/event/testing_automated_performance_testing_virtualization/attachments/slides/3732/export/events/attachments/testing_automated_performance_testing_virtualization/slides/3732/Automated_Performance_Testing_for_Virtualization_with_MMTests.pdf …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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If you’re interested in performance benchmarking on VMs and you’re
@fosdem you should definitely check this out

https://twitter.com/dariofaggioli/status/1223268489546301441 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Matt Fleming proslijedio/la je Tweet
It's interesting to look at the 'Guide for porting .NET to a new processor architecture' https://github.com/dotnet/runtime/blob/master/docs/design/coreclr/botr/guide-for-porting.md#design-issues … and read through the 'Design Issues', *lots* of low-level details the Runtime has to handle across CPUs/OSespic.twitter.com/NHnr7mYiO2
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I will never stop being disappointed that
@golang didn’t called pprof The Gofiler
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Matt Fleming proslijedio/la je Tweet
This is a great
#VLDB20 paper from@xexd. It breaks down and evaluates all the tricks from the last decade for in-memory concurrency control research.https://twitter.com/pvldb/status/1222912365773099010 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
I’m still pretty shocked they SIMD isn’t used more often. This will bring some nice speed ups.https://twitter.com/v8js/status/1222944308183085058 …
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This is the best talks on locks I've ever seen. I can't believe how much
@kavya719 covers in 41mins: memory/compiler memory models, atomics, futexes. Wow
(via @copyconstruct's Best of 2019 tech talks list)https://www.infoq.com/presentations/go-locks/ …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Matt Fleming proslijedio/la je Tweet
You never know when you're going to need a custom garbage collector so I'd better find out how to do it, from
@konradkokosa#ndclondonpic.twitter.com/ReMo0tevwc
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Matt Fleming proslijedio/la je Tweet
I'm going to be speaking at
#EuroLLVM about how we manage to make extensive changes to LLVM without forking the project - see the abstract here http://www.llvm.org/devmtg/2020-04/talks.html#TechTalk_2 …Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Tree automata and ranked alphabets in the LLVM internals, oh my! https://twitter.com/1101_debian/status/1222179801622110208 …pic.twitter.com/Y3iatgcfQx
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