search for: 4ms

Hi, I''m using Xen 3.2.1 with 2.6.26 as Dom0 and DomU in the x86_64 Versions/Builds as provided by Debian Lenny. I noticed that when using "jiffies" as clocksource, the resolution of the timers in a DomU is 4ms, e.g. ping shows only runtimes in 4ms increments [1]. When using "xen" the resolution is fine (didn''t make exact measurements) but xen is a no-go when migrating guests between Dom0s. Is the 4ms resolution behavior expected or something specific to the Debian builds? Is there...

...ls back to `INTEGER_ELT()` for which there is a `wrapper_integer_Elt()` method defined that will use the underlying compact seq's `integer_Elt()` method, but it is less efficient than it could be. My rough benchmarks show that in R 3.6.0 the subset benchmarks at the bottom of this message take 4ms on the compact seq, and 5ms on the wrapped compact seq. With a patch that I have prepared, both take 4ms. The other reason I bring this up is that it can result in bugs with some ALTREP objects. I was working on one where it makes sense to have an `Extract_subset()` method but not an `Elt()` metho...

...; that might be easier to implement. However, without actual modeling I have no > idea if that would actually improve things. Nagle is usually turned off because it causes annoying perceptions of non-deterministic latency. For ssh, IMO sending interactive traffic on a fixed clock (e.g. every 2-4ms) instead of as soon as possible, and adding fake keystroke packets for some interval after the user stops generating traffic is the way to fix it. I've slowly been preparing for this by reworking the mainloop and associated timers. > Anyway, I was simply thinking about this because the who...

...ed PLC correctly? Checking the waveform it is using the previous received waveform to fill in a missing packet but not the full waveform so it has to repeat. Basically, within a single lost 20ms packet I hear two replicas of the last 10ms of the previous waveform. Sometimes the repeats are only 4ms long thus repeating 5 times. This makes it sound robotic. Is this typical or do I have it implemented incorrectly? Should it not try to create one replica of the entire 20ms previous waveform instead of having to repeat a portion of it? Scott Boekweg -------------- next part -------------- An H...

I posted this question a while back, and I'm posting again in hopes that someone has some ideas. Sorry if you've already seen this. When dialing out using a SIP or IAX provider (Broadvoice, SimpleTelecom, VoicePulse Connect) I often find that after the call is answered the first few seconds of audio are cut off (i.e. I don't hear the called party). This usually results in the called

Dear I am testing tinc on Windows and found some interesting behavior. I used "TCPOnly" parameter for both end because I wanted to go through NAT. However, by using TCPOnly parameter, the response of PING slowed down significantly. The PING response with UDP is about 4ms, but it bumped up to 2000ms with TCP. I am just curious whether this is caused by using TCP. Regards Masateru KUWATA Computer & Communications Consulting Phone: 070-5465-6505(Domestic)/+81-70-5465-6505(Oversea? Mobile mail:masateru_kuwata at wm.pdx.ne.jp Profile: http://www.geocities.jp/mki_...

...warning: Started GET "/assets/books.css?body=1" for 127.0.0.1 at 2012-02-26 14:48:35 +0900 Served asset /books.css - 304 Not Modified (5ms) Started GET "/assets/application.css?body=1" for 127.0.0.1 at 2012-02-26 14:48:35 +0900 Served asset /application.css - 304 Not Modified (4ms) Started GET "/assets/scaffolds.css?body=1" for 127.0.0.1 at 2012-02-26 14:48:35 +0900 Served asset /scaffolds.css - 304 Not Modified (1ms) Started GET "/assets/books.js?body=1" for 127.0.0.1 at 2012-02-26 14:48:35 +0900 Served asset /books.js - 304 Not Modified (1ms) Star...

...rt Status JOHN/john_smith 192.168.1.1 D N 5060 OK (3ms) ## register from soft2 with JOHN" at least 2min after## Name/username Host Dyn Nat ACL Port Status JOHN/john_smith 192.168.1.2 D N 5060 OK (4ms) -------------- next part -------------- An HTML attachment was scrubbed... URL: http://lists.digium.com/pipermail/asterisk-users/attachments/20090724/a359abc8/attachment.htm

...things/45.pdf ).. Any suggestions? Thanks! ERROR: Started GET "/fancy_things/45.pdf" for 192.168.66.1 at Fri Dec 31 10:59:07 -0500 2010 Processing by OrdersController#show as PDF Parameters: {"id"=>"45"} ***************WICKED*************** Completed in 4ms ArgumentError (wrong number of arguments (1 for 0)): app/controllers/orders_controller.rb:20 app/controllers/orders_controller.rb:9:in `show'' Rendered /usr/lib/ruby/gems/1.8/gems/actionpack-3.0.3/lib/ action_dispatch/middleware/templates/rescues/_trace.erb (4.8ms) Rendered /usr/lib/r...

...selection could be. lcc uses a BURG-type (called lburg) instruction-selector. The following is for x86/linux (ubuntu) I am interested in JIT performance so I have only counted user+sys time. Compiling a small test program (the dhrystone benchmark): lcc (Fraser and Hanson) (after pre-processing): 4ms. llc : 16ms. Incidentally, optimisation is respectably fast opt -O3 : 16ms. (My machine is quite slow) Using -time-passes shows that almost all of the time spent by llc is in the DAG-to-DAG instruction selection. lcc...

This is problem 1 of 3 problems we are having with live migration and/or ACPI on Xen-4.3 and Xen-4.2. Any help would be appreciated. Detailed description of problem: We are using Xen-4.3-rc1 with dom0 running Ubuntu Precise and 3.5.0-23-generic kernel, and domU running Ubuntu Precise (12.04) cloud images running 3.2.0-39-virtual. We are using the xl.conf below on qemu-upstream-dm and HVM and

Hi, I have some servers that are dedicated to do meetme conferencing. From some previous test i concluded that I need to use dahdi_dummy as it is more accurate. If I did use the core timers in dahdi (not loading dahdi_dummy) I got bad quality in the conferences and dahdi_test showed 99.6% as worst. I thought maybe the issue as bad hardware for the timing or something else. But today I

...nce. First, I must say that we didn''t succed to setup Windows 2000/2003 directly using  Xen, we had to install it using qemu and then boot it into Xen HVM. The performance problem seems to be coming from network latency : depending on the host OS, we have measured ping times ranging from 4ms (Windows 2000, Linux) to 10ms (Windows 2003). Of course, the network performance is suffering, with throughputs aroud 600kbytes/s for Windows 2003, and 3Mbytes for Windows 2000 and Linux. The CPUs are idle during our benchmarks. We suspected the network driver was using some kind of polling, b...

...d to wedding): ..." I did the same thing on my local machine and everything works fine. The local log says: "Processing Checklists::WeddingController#index (for 127.0.0.1 at 2009-03-29 22:37:56) [GET] Rendering template within layouts/site Rendering checklists/wedding/index Completed in 4ms (View: 2, DB: 0) | 200 OK [http://localhost/checklists/wedding]" Why does the host server keep trying to go to ChecklistsController, when it should be looking at Checklists::WeddingController? I do not understand why the system will not allow me to do this on the host server. All versions of...

...gt; Checking the waveform it is using the previous received waveform to fill > in a missing packet but not the full waveform so it has to repeat. > Basically, within a single lost 20ms packet I hear two replicas of the > last 10ms of the previous waveform. Sometimes the repeats are only 4ms > long thus repeating 5 times. This makes it sound robotic. Is this > typical or do I have it implemented incorrectly? Should it not try to > create one replica of the entire 20ms previous waveform instead of > having to repeat a portion of it? > > > > Scott Boekweg &...

...es closed by this release: DAHLIN-257: wcb4xxp shows hardware EC in /proc/dahdi/* for B410P although vpmsupport=0 DAHLIN-260: wctdm24xxp/base.c fails to compile in 2.6.16 kernel The DAHDI-Linux short log from v2.5.0.1 is: Shaun Ruffell (8): dahdi: Decrease the initial coretimer delay to 4ms from 1 second. wctdm24xxp, wcte12xp: Advertise VPMOCT032 presence in dahdi_span.devicetype. dahdi: Check for master in DAHDI_STARTUP / resolves MeetMe regression. wctdm24xxp: Set dahdi_span.devicetype string in one place. wctc4xxp: Allow G723 SID frames to pass to th...

...es closed by this release: DAHLIN-257: wcb4xxp shows hardware EC in /proc/dahdi/* for B410P although vpmsupport=0 DAHLIN-260: wctdm24xxp/base.c fails to compile in 2.6.16 kernel The DAHDI-Linux short log from v2.5.0.1 is: Shaun Ruffell (8): dahdi: Decrease the initial coretimer delay to 4ms from 1 second. wctdm24xxp, wcte12xp: Advertise VPMOCT032 presence in dahdi_span.devicetype. dahdi: Check for master in DAHDI_STARTUP / resolves MeetMe regression. wctdm24xxp: Set dahdi_span.devicetype string in one place. wctc4xxp: Allow G723 SID frames to pass to th...

...in new stack May 2 11:11:55 DEBUG[6343] channel.c: Scheduling timer at 160 sample intervals May 2 11:11:55 VERBOSE[6343] logger.c: -- Executing NVFaxDetect("SIP/jlynch-cf63", "0") in new stack May 2 11:11:55 DEBUG[6343] app_nv_faxdetect.c: Preparing detect of fax (waitdur=4ms, sildur=1000ms, mindur=100ms, maxdur=-1ms) May 2 11:11:55 DEBUG[2670] chan_sip.c: Stopping retransmission on ' 21710733271a1e37775bc8ad1259e42f@4.79.19.59' of Response 102: Match Found May 2 11:11:55 DEBUG[2670] chan_sip.c: Stopping retransmission on ' 21710733271a1e37775bc8ad1259e42f...

A Polycom 550 and a IAX client (Mozphone and ZoIPer were used) are having a conversation. Call quality is reported as good except for an echo with a 3 second delay. Most of my searches are saying echo happens only on the PSTN piece, but there isn't one here. Can someone point me in the right direction? Asterisk 1.4.21.2 Under 40 users Quad-Core AMD Opteron(tm) Processor 2352 and 4G RAM

Environment: rvm ruby 1.9.2-p180 rails 3.1.rc1 Conditions: gem "coffee-script" # in Gemfile at least one file with .js.coffee (even empty inside) in app/assets Result: WEBrick or Unicorn hangs. Only kill -9 <pid> helps. P.S. What additional info should I provide? -- You received this message because you are subscribed to the Google Groups "Ruby on Rails: Core" group.