search for: ftl

...her errors happen before the segfault, suggesting that some memory corruption is underway. AFAICS a pure python plugin should not be able to cause memory corruption. Examples of nbdkit logs for running "make check" or subsets of it from nbd against nbdkit: nbdkit -n -f python script=ssd-ftl-wearleveling.py disksize=52428800 nbdkit: python[6]: error: ssd-ftl-wearleveling.py: callback failed: close nbdkit: python[7]: error: invalid flush request: expecting offset and length == 0 nbdkit: python[7]: error: write reply: Connection reset by peer Segmentation fault nbdkit -n -f python scrip...

> On Feb 11, 2016, at 12:43 AM, via llvm-dev <Alexander G. Riccio> wrote: > > I don’t think that we can agree to abstract code guidelines without knowing what it means in practice for the codebase. If you’re interested in this, please include a diff that shows the impact to the headers, and we should also measure what happens to the performance of the generated compiler. > >

...and nbdkit shouldn't segfault ever. > > Did you get a stack trace from C (not from Python)? The core files were useless, but I ran nbdkit in gdb and got something... (gdb) run -n -f /software/nbdkit/plugins/python/.libs/nbdkit-python-plugin.so script=/software/nbdkit/plugins/python/ssd-ftl-wearleveling.py disksize=52428800 Starting program: /software/nbdkit/src/nbdkit -n -f /software/nbdkit/plugins/python/.libs/nbdkit-python-plugin.so script=/software/nbdkit/plugins/python/ssd-ftl-wearleveling.py disksize=52428800 [Thread debugging using libthread_db enabled] Using host libthread_db...

...39;t segfault ever. >> >> Did you get a stack trace from C (not from Python)? > The core files were useless, but I ran nbdkit in gdb and got something... > > (gdb) run -n -f /software/nbdkit/plugins/python/.libs/nbdkit-python-plugin.so script=/software/nbdkit/plugins/python/ssd-ftl-wearleveling.py disksize=52428800 > Starting program: /software/nbdkit/src/nbdkit -n -f /software/nbdkit/plugins/python/.libs/nbdkit-python-plugin.so script=/software/nbdkit/plugins/python/ssd-ftl-wearleveling.py disksize=52428800 > [Thread debugging using libthread_db enabled] > Using hos...

...on plugin should not cause memory corruption, and nbdkit shouldn't segfault ever. Did you get a stack trace from C (not from Python)? Rich. > Examples of nbdkit logs for running "make check" or subsets of it from > nbd against nbdkit: > > nbdkit -n -f python script=ssd-ftl-wearleveling.py disksize=52428800 > nbdkit: python[6]: error: ssd-ftl-wearleveling.py: callback failed: close > nbdkit: python[7]: error: invalid flush request: expecting offset and > length == 0 > nbdkit: python[7]: error: write reply: Connection reset by peer > Segmentation fault &...

> On Feb 9, 2016, at 9:55 AM, Rafael Espíndola via llvm-dev <llvm-dev at lists.llvm.org> wrote: > > > > JavaScriptCore's [FTL JIT](https://trac.webkit.org/wiki/FTLJIT <https://trac.webkit.org/wiki/FTLJIT>) is moving away > > from using LLVM as its backend, towards [B3 (Bare Bones > > Backend)](https://webkit.org/docs/b3/ <https://webkit.org/docs/b3/>). This includes its own [SSA > > IR](https...

...; Philip > > On 02/15/2016 03:12 PM, Andrew Trick via llvm-dev wrote: >> >>> On Feb 9, 2016, at 9:55 AM, Rafael Espíndola via llvm-dev <llvm-dev at lists.llvm.org <mailto:llvm-dev at lists.llvm.org>> wrote: >>> > >>> > JavaScriptCore's [FTL JIT](https://trac.webkit.org/wiki/FTLJIT <https://trac.webkit.org/wiki/FTLJIT>) is moving away >>> > from using LLVM as its backend, towards [B3 (Bare Bones >>> > Backend)](https://webkit.org/docs/b3/ <https://webkit.org/docs/b3/>). This includes its own [SSA &gt...

...flash used in the drive is SLC. MLC, or TLC. This will tell you how many write cycles the flash can support. This is where you will see numbers such as 10,000 write cycles, all the way down to 1,000 write depending on the quality of the flash used. 2) The quality of the Flash Translation Layer (FTL). The important thing to remember here is that not all parts of the storage device will get used to the same amount. Some files will rarely change once they are installed on the device; others will change a huge amount. So a good Flash Translation Layer will spread out the wear so that if you hav...

...h-level optimization where the optimizer registers some assumptions about runtime types (tier 3 in my case). I’m not saying it’s a good idea to have all those tiers, it’s just a way to compare JIT levels. The point is, you are a tier higher than B3. - Andy > > It really sounds to me like FTL is positioned somewhere between tier 1 and tier 2 in the above. Is that about right? >> You also have more room for background compilation threads and aren’t benchmarking on a MacBook Air. > True! Both definitely matter. >> >> Andy >> >>> >>> Philip...

Hi @ll, I would like to obsolete and completely remove the WebKit Calling Convention. The CC was originally added for FTL and there are no other users I am aware off. Since WebKit moved away from LLVM a while ago I don’t see the need to keep the dead code around anymore. Please let me know if anyone happens to use this calling convention or has any objection with removing it. Thanks Cheers, Juergen --------------...

...ent = Parent share sets top level Windows file permission inheritance guest ok = no read only = no [Backup] path = /srv/samba/Shares/Backup comment = Create separate folders, with locked down permissions, for each application guest ok = no read only = no [FTL] path = /srv/samba/Shares/FTL comment = FTL tools and documents to help with on-site service guest ok = no read only = no [Software] path = /srv/samba/Shares/Software comment = Software for installation via GPO guest ok = no read only = no [...

I think this is really an attempt at user feedback, rather than user discussion. But there's no such thing as a user-feedback mail list. Nevertheless, others may find this pertinent: why doesn't mke2fs handle USB's competently? And if it does, why doesn't it reassure me so? And how can I handle a linux-formatted USB flash drive in the absence of my system giving me any guidance?

...m lexer to linker (and in case of QA and performance analysis, far beyond linker...) If you are looking for an interesting, challenging and -- yes, well compensated -- LLVM-related job in Moscow, this is the place to go. For more details, go to https://intel.taleo.net/careersection/10000/jobsearch.ftl and search for job numbers 750877 (Clang frontend engineer), 750872 (QA engineer) and 750875 (performance analysis engineer). Andrey Bokhanko ============= Software Engineer Intel Compiler Team Intel -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.l...

Hi folks, For people who might be interested, here is how btrfs performs with two partitions on a single SSD drive in a RAID-1 mirror. This is on a Dell E4200 with Core 2 Duo U9300 (1.2GHz), 2GB RAM and a Samsung SSD (128GB Thin uSATA SSD). Version 1.03c ------Sequential Output------ --Sequential Input- --Random- -Per Chr- --Block-- -Rewrite- -Per Chr- --Block--

...sbradbury on Twitter. ## News and articles from around the web Slides from the LLVM devroom at FOSDEM last weekend are [now available online](http://llvm.org/devmtg/2016-01/). Unfortunately there was an issue with the recording of the talks so videos will not be available. JavaScriptCore's [FTL JIT](https://trac.webkit.org/wiki/FTLJIT) is moving away from using LLVM as its backend, towards [B3 (Bare Bones Backend)](https://webkit.org/docs/b3/). This includes its own [SSA IR](https://webkit.org/docs/b3/intermediate-representation.html), optimisations, and instruction selection backend. So...

...gt; inheritance > ? ? ? ?guest ok = no > ? ? ? ?read only = no > > [Backup] > ? ? ? ?path = /srv/samba/Shares/Backup > ? ? ? ?comment = Create separate folders, with locked down > permissions, for each application > ? ? ? ?guest ok = no > ? ? ? ?read only = no > > [FTL] > ? ? ? ?path = /srv/samba/Shares/FTL > ? ? ? ?comment = FTL tools and documents to help with on-site service > ? ? ? ?guest ok = no > ? ? ? ?read only = no > > [Software] > ? ? ? ?path = /srv/samba/Shares/Software > ? ? ? ?comment = Software for installation via GPO > ?...

...is SLC. MLC, or TLC. This > will tell you how many write cycles the flash can support. This is > where you will see numbers such as 10,000 write cycles, all the way > down to 1,000 write depending on the quality of the flash used. > > 2) The quality of the Flash Translation Layer (FTL). The important > thing to remember here is that not all parts of the storage device > will get used to the same amount. Some files will rarely change once > they are installed on the device; others will change a huge amount. > So a good Flash Translation Layer will spread out the wea...

Sony Computer Entertainment America is looking for an intern to work on LLVM and/or Clang. Please see the official listing for more details: <http://playstation.taleo.net/careersection/jobdetail.ftl?job=34880> Additionally, we're looking for folks for an interest in lower-level parts of our platforms: <http://playstation.taleo.net/careersection/jobdetail.ftl?job=34864> ----------------------------------------- Alex Rosenberg Manager, Platform Architecture Sony Computer Entertai...

> We'd like to help in software, but we can't; we have no reliable way > of knowing most of the necessary details of this class of hardware. > It's not exported in any way. > > So unfortunately we are as in the dark as you are in this case. This is incredible, Mr Sandeen. You mean USB flash manufacturers (what's their body - the USB Implementer's Forum?) have

...roup name? I know I can create a new group, add users to the new group, use the new group in an ACL, delete the old principal from the ACL, then finally delete the old group, but that's a fair bit of work. -- Mason Schmitt Faster Than Light Computing Inc. (250) 804-4365 Ext. 203 mason at ftlcomputing.com *Relationship-Driven IT Support Services*