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I wonder how hard it would be to jam an ARM board and a RISCV board into an HP Microserver G8 case, for build/test farm work, for tidy power/network/cabling in a cube form factor that is stackable with the rest of my homelab...
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I have a btree scan prefetch patch which works pretty well in some cases like this, but I didn't think of the vismap pages. Could add that but now I am wondering if we shouldn't just prefetch the *whole* vismap...https://twitter.com/felixge/status/1219268882416001025 …
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Drat. I had a proposal lined up but it seems the CFP closed a bit earlier than I expected (I expected the *end* of the 19th in Ottawa). That'll teach me to leave things to the last minute.https://twitter.com/BSDCan/status/1218607694967443457 …
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Thomas Munro proslijedio/la je Tweet
We propose Pivoted Query Synthesis (PQS), a new approach for finding logic bugs in DBMS (see https://arxiv.org/abs/2001.04174 ). Using PQS, we found ~100 previously unknown (and many critical) bugs in widely-used DBMS (e.g., SQLite3, MySQL, and PostgreSQL). Work with
@zhendongsu.pic.twitter.com/ZAmQsLAoOe
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Thomas Munro proslijedio/la je Tweet
Linus Torvalds says “Don’t use ZFS”—but doesn’t seem to understand it http://arstechnica.com/gadgets/2020/01/linus-torvalds-zfs-statements-arent-right-heres-the-straight-dope/?utm_brand=arstechnica&utm_source=twitter&utm_social-type=owned&utm_medium=social … by
@jrssnetHvala. 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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Day 4/7. I challenge
@alexjscotti . 7 days' photos from your life, no people, no comments.pic.twitter.com/qiqTn21bzS
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Hvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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Day 1/7 No challenges, if you feel challenged, act accordingly!pic.twitter.com/tW7hRdvgzH
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Does "make" have the right kind of information to be able to speed up large build jobs with POSIX_FADV_WILLNEED?
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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Here it is for ZoF
@OpenZFS (instead of the legacy ZFS in the#FreeBSD tree today). https://github.com/zfsonfreebsd/ZoF/compare/projects/zfsbsd...macdice:fadvise … Not sure if this is sane enough to propose beyond Twitter yet (is the locking OK?) but it'll let me do my current PostgreSQL work on my favourite OS so there's that!Prikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi -
Ok another late night hacking session, and the answer so far appears to be: yes! About a 4x speed-up for random cold cache pread() stream on my laptop, by using posix_fadvise() to prefetch 20 blocks ahead.https://github.com/macdice/some-io-tests/blob/master/README …
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Dependency on chocolatey removed for now. That should clear up this new wave of bogus build failures.
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I spent an evening poking around in the ZFS source, and connecting dmu_prefetch() up to POSIX_FADV_WILLNEED. So far I can tell you that it compiles, and doesn't crash my kernel (woo!). Tune in next time when I figure out if it's really prefetching :-) https://github.com/freebsd/freebsd/compare/master...macdice:fadvise …
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Thomas Munro proslijedio/la je Tweet
We're proud to announce the inclusion of te reo Māori in our Microsoft Translator application which will enable instant translations of text from more than 60 languages into te reo Māori and vice versa. http://msft.it/6010TVXDn pic.twitter.com/mUurlFdo0u
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I should add that I don't know what I'm doing and there may be basic things wrong with that code but it *seems* to work in quick tests. Testing with a set of not-yet-posted PostgreSQL patches to sprinkle PrefetchBuffer() in more fun places to reduce stalls.
#PatchAllTheThingsPrikaži ovu nitHvala. Twitter će to iskoristiti za poboljšanje vaše vremenske crte. PoništiPoništi
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