search for: prefetching

...el at anl.gov> wrote: > ----- Original Message ----- > > From: "usha shau" <ushashau1 at gmail.com> > > To: llvmdev at cs.uiuc.edu > > Sent: Monday, September 22, 2014 7:01:20 AM > > Subject: [LLVMdev] Use of llvm.prefetch intrinsic for basicblock > prefetching > > > > Hi, > > > > > > I am new to LLVM and using it for my project where I want to perform > > software prefetching of code blocks. > > I am not able to use the llvm.prefetch instruction to fetch a block > > of code in instruction cache. The LangRef...

Hi, I am new to LLVM and using it for my project where I want to perform software prefetching of code blocks. I am not able to use the llvm.prefetch instruction to fetch a block of code in instruction cache. The LangRef <http://llvm.org/docs/LangRef.html#llvm-prefetch-intrinsic>manual mentions that giving last argument as '0' performs prefetch on instruction cache. However, I...

On 2019-10-18 13:25, Tom Sommer via dovecot wrote: > I am seeing a lot of errors since the upgrade, on multiple client > accounts: > > Info: Connection closed: read(size=7902) failed: Connection reset by > peer (UID FETCH running for 0.242 + waiting input/output for 108.816 > secs, 60 B in + 24780576+8192 B out, state=wait-output) > > Using NFS storage (not running with

https://dovecot.org/releases/2.3/dovecot-2.3.8.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.8.tar.gz.sig Binary packages in https://repo.dovecot.org/ Changes + Added mail_delivery_started and mail_delivery_finished events, see https://doc.dovecot.org/admin_manual/list_of_events/ for details. + dsync-replication: Don't replicate users who have "noreplicate" extra field in

https://dovecot.org/releases/2.3/dovecot-2.3.8.tar.gz https://dovecot.org/releases/2.3/dovecot-2.3.8.tar.gz.sig Binary packages in https://repo.dovecot.org/ Changes + Added mail_delivery_started and mail_delivery_finished events, see https://doc.dovecot.org/admin_manual/list_of_events/ for details. + dsync-replication: Don't replicate users who have "noreplicate" extra field in

HI, Has anyone ever implemented instruction prefetching with llvm? If so, on which architectures? -- Thanks, Aasheesh -------------- next part -------------- An HTML attachment was scrubbed... URL: <http://lists.llvm.org/pipermail/llvm-dev/attachments/20121212/0fa88f39/attachment.html>

Hi, I am looking at how the PREFETCHW instruction is matched to the IR prefetch intrinsic (and __builtin_prefetch). Consider this C program: char foo[100]; int bar(void) { __builtin_prefetch(foo, 0, 0); __builtin_prefetch(foo, 0, 1); __builtin_prefetch(foo, 0, 2); __builtin_prefetch(foo, 0, 3); __builtin_prefetch(foo, 1, 0); __builtin_prefetch(foo, 1, 1);

Hello, Can anyone please guide me how can I replace a load instruction with a prefetch. I was looking at the intrinsic creation methods of the IRBuilder, but I can only find functions corresponding to memset, memcpy and memmove intrinsics, not for prefetching. Also, I target x86-64 architectures. Is it sufficient to insert a call to the intrinsic in the LLVM IR to have the corresponding prefetch instruction generated for this target? Thank you for your help, Alexandra -------------- next part -------------- An HTML attachment was scrubbed... URL: &lt...

Am Mo., 5. Nov. 2018 um 10:26 Uhr schrieb David Greene <dag at cray.com>: > Yes, I agree the terminology is confusing. I used the term "stream" in > the sense of stream processing (https://en.wikipedia.org/wiki/Stream_processing). > The programming model is very different, of course, but the idea of a > stream of data that is acted upon and then essentially discarded

Hi all... The prefetch entry in the wiki says: "If you're using Dovecot's local delivery agent, you'll still need a valid userdb which it can use to locate the users. You can do this by adding a normal sql/ldap userdb after userdb prefetch." (http://wiki.dovecot.org/UserDatabase/Prefetch) My question is: Does it need to be a SQL/LDAP userdb? How about static or passwd?

On Wed, Dec 12, 2012 at 07:09:45PM -0500, aasheesh kolli wrote: > HI, > > Has anyone ever implemented instruction prefetching with llvm? If so, on which > architectures? Grep prefetch in lib/Target/* will show you ARM, X86, and PPC seems have implemented prefetch instruction. LLVM provides prefetch intrinsic [1] so that you can insert it in LLVM IR as a hint to code generator. I guess you need to write a pass to low...

Hello, I am setting up a new server and migrating my Dovecot 1.2.9 config to the new 2.2.9 version. There wasn't much to keep from the old version so I had to recreate the config from scratch. Now I think I'm done but I can't login to IMAP. The log says this: > dovecot: auth: Error: prefetch(box@****.de,2001:****:7765,<bzAOP5QJXwAgAQpgEAXJAZyOMB1qBXdl>): userdb lookup not

...I can add methods to TLI that can convert the access stride information into effective latency information, but what is the best way to annotate the loads so that the information will be available to the SDNodes? Has anyone tried something like this before? A related issue is automatically adding prefetching to loops. The trick here is to accurately estimate the number of cycles the loop body will take the execute (so that you prefetch the correct amount ahead). This information is not really available until instruction scheduling, and so prefetch adding cannot really complete until just before MC gene...

...; > > > Hello, > > > Can anyone please guide me how can I replace a load instruction with > a prefetch. I was looking at the intrinsic creation methods of the > IRBuilder, but I can only find functions corresponding to memset, > memcpy and memmove intrinsics, not for prefetching. > > > Also, I target x86-64 architectures. Is it sufficient to insert a > call to the intrinsic in the LLVM IR to have the corresponding > prefetch instruction generated for this target? > > > > Thank you for your help, > Alexandra > > ____________________...

...onvert the access stride > information into effective latency information, but what is the best > way to annotate the loads so that the information will be available to > the SDNodes? > > Has anyone tried something like this before? > > A related issue is automatically adding prefetching to loops. The > trick here is to accurately estimate the number of cycles the loop > body will take the execute (so that you prefetch the correct amount > ahead). This information is not really available until instruction > scheduling, and so prefetch adding cannot really complete until...

Hi, I've got this strange problem where a striped endpoint will crash when I try to use cp to copy files off of it but not when I use rsync to copy files off: [user at gluster5 user]$ cp -r Python-2.6.4/ ~/tmp/ cp: reading `Python-2.6.4/Lib/lib2to3/tests/data/fixers/myfixes/__init__.py': Software caused connection abort cp: closing

Am 07.12.2014 um 00:56 schrieb Alexander Dalloz: > You did fulfill the requzirements for prefetch to work documented in the > wiki? > > http://wiki2.dovecot.org/UserDatabase/Prefetch Ehm, this is my SQL configuration 'dovecot-sql.conf.ext': > driver = mysql > connect = host=**** user=**** password=**** dbname=**** > default_pass_scheme = PLAIN > password_query = \

Sorry for not responding earlier. On 05/20/2016 03:05 PM, Roman Gareev wrote: > Thank you very much for the advices! I could probably try to avoid > using of nonhardware prefetching in the project, if Tobias doesn’t > disagree with it. My understanding is that prefetching isn’t used > explicitly in [1] and, according to [2], in some cases 90% of the > turbo boost peak of the processor can be attained without it. Too many negations :-) I'm not sure I followed exac...

Hello We are seeing the following lines in our /var/log/kern file. and I am wondering why IO window is disabled for those pci bridges and if it is necessary to enable them. Nov 1 15:19:18 Song kernel: IO window: disabled. Nov 1 15:19:18 Song kernel: MEM window: f4000000-f7ffffff Nov 1 15:19:18 Song kernel: PREFETCH window: disabled. Nov 1 15:19:18 Song kernel: PCI: Bridge: 0000:07:00.0 Nov

Hello After having installed my X100P, /proc/pci and /proc/interrupts dosent locate them. In my PCI list is it the Communication controller: Tiger Jet Network Inc ? then is dosent have a IRQ listed in /proc/pci.. All help appreciated Thanks and Regards Ajit ===========================/proc/pci================================== PCI devices found: Bus 0, device 0, function 0: Host