search for: spike

Displaying 20 results from an estimated 805 matches for "spike".

2017 Mar 11
2
Eaton 1500 USB constant disconnections
Hi, I have a eaton 1500 that connects to an Ubuntu Xenial box via USB. The UPS works, however exactly *ever 5 minutes* it disconnects and reconnects and I see this in syslog: Mar 10 19:50:32 spike kernel: usb 4-5: USB disconnect, device number 103 Mar 10 19:50:33 spike kernel: usb 4-5: new low-speed USB device number 104 using ohci-pci Mar 10 19:50:34 spike kernel: usb 4-5: New USB device found, idVendor=0463, idProduct=ffff Mar 10 19:50:34 spike kernel: usb 4-5: New USB device strings: Mfr=...
2010 Sep 24
5
Asterisk 1.62.13 - CPU spikes every 10 minutes
Hi, I've been getting regular CPU usage spikes(50%-80%), due to asterisk (according to top). I never noticed this on 1.4, and I have top running in the background pretty much all the time. In between those spikes Asterisk stays under 10% CPU usage (I have a transcoder card, which helps). It's very regular, never any missed spike, or a...
2017 Mar 29
1
Eaton 1500 USB constant disconnections
...ssuming it'd failed. Eventually debugging through systemd/udev I realized it was indeed the device initiating a connection and found out about the pong from the UPS. thanks again and maybe worthwhile to have this documented somewhere, not sure, maybe the ML archive will work for that. best, Spike On Tue, Mar 28, 2017 at 2:46 AM Arnaud Quette <arnaud.quette at gmail.com> wrote: > > 2017-03-11 4:55 GMT+01:00 Spike <spike at drba.org>: > > Hi, > > > Hi Spike, > > sorry for the lag in answering, I was collecting the needed information. > > I have a...
2001 Dec 15
1
fit to spike with exponential decay : optim() question
...l guess? For this example, I get a lousy solution if I make the initial guess for t0 = min(t) = 0.05. Thanks again, -- Robert Merithew LASSP, Clark Hall Cornell University, Ithaca NY ----------- t <- c(0.05,0.9,1.4,2.38,3.42,5.4,8.31,12.4) amp <- c(1.0,0.85,7.4, 6.1, 4.95, 3.5, 2.3, 1.5) spike <- function (x, t) { b0 <- x[1] b1 <- x[2] tau <- x[3] t0 <- x[4] temp <- exp((-t+t0)/tau) (b0 + (b1 * temp) * (t > t0)) } spike.sos <- function (x) { sum((amp - spike(x, t))^2) } guess <- c(min(amp), max(amp)-min(amp), (max(t)-min(t))/3, 0) decay.opt...
2020 Apr 22
3
Troubleshooting load issues
All the calls are using ulaw. The files that I am playing are gsm. I suppose doing a file convert with sox to .ulaw may help but it should be able to do 500 calls without an issue. Can it possibly be a bug? if not how do I profile which call(s) can be causing the spike? On Wed, Apr 22, 2020 at 2:21 PM Telium Technical Support <support at telium.io> wrote: > Could some calls be arriving with a different codec? (Is transcoding > causing the spikes)? Are you limiting codecs to match your audio files? > > > > *From:* asterisk-users [mailt...
2014 Aug 04
3
Tinc Network Spikes
...t issues. ? I have 12 servers around the United States, including a couple of moving clients. Every now and then the network is flooded with what I assume is looping packets. 200-300MB of bandwidth per node over 10-45 minutes (normally < 20 KB/s, idle). Most if not all nodes participate in the spike. Some nodes just have a spike on output, some only on input. ? I see a bunch of these lines in the logs on all the servers with the spikes, each about one or two other nodes: ``` Got late or replayed packet from <NODE_NAME> (<INTERNAL_IPv6_ADDRESS>%<NETWORK_NAME> port 655), se...
2020 Apr 22
4
Troubleshooting load issues
...has an IVR that plays random gsm files. The box has SSD's and two CPU E5-2695 v2 cpus with 64GB ram. The Asterisk CPU usage along with the load seems to jump around. With about 500 callers it hovers between 250-400% CPU (so 2.5 to 4 cores) which seems reasonable. Every so often the load average spikes. The idle never drops below 85%. When the load average spikes I see a lot of kworker threads and the CPU usage tends to (not not always) go up as well. How would I go about seeing what in Asterisk is causing the spike? The box is locked down and only takes calls from an OpenSiPS box. There is noth...
2004 Dec 13
3
CPU spikes with wcfxs loaded
..., +/- 1003 interrupts/sec., less than 10 context switches/sec., CPU idle 100%. A very quiet system. I load modules zaptel and wcfxo, and the system utilization stays the same. When I load wcfxs, the number of interrupts goes up to +-2004, which is normal. However, every three seconds the CPU spikes to 50%. This is "system" utilization, not userland. I assume it's in a wcfxs interrupt. The number of interrupts stays constant at about 2004 during each spike, leading me to the conclusion that the TDM card is holding an interrupt for 500ms every three seconds (50% of 1000ms i...
2018 Jun 25
2
doveadm: problem listing shared mailboxes using a wildcard
...t; I've been using wildcard arguments enclosed within '' and "" for > various doveadm commands without issues so far. Right. I had thought so too (and forgot to mention it in my intial post), but it doesn't make a difference: # /bin/doveadm mailbox list -s -u fdl01 at spike.test shared\* # /bin/doveadm mailbox list -s -u fdl01 at spike.test "shared*" # /bin/doveadm mailbox list -s -u fdl01 at spike.test 'shared*' # /bin/doveadm mailbox list -s -u fdl01 at spike.test "shared\*" # /bin/doveadm mailbox list -s -u fdl01 at spike.test 'share...
2017 Mar 28
0
Eaton 1500 USB constant disconnections
2017-03-11 4:55 GMT+01:00 Spike <spike at drba.org>: > Hi, > Hi Spike, sorry for the lag in answering, I was collecting the needed information. I have a eaton 1500 that connects to an Ubuntu Xenial box via USB. The UPS > works, however exactly *ever 5 minutes* it disconnects and reconnects and I > see this i...
2018 Jun 25
3
doveadm: problem listing shared mailboxes using a wildcard
I'm setting up a dovecot server with private and shared namespaces. My test setup has these mailboxes: # /bin/doveadm mailbox list -u fdl01 at spike.test INBOX/sub01 shared shared/sammel01 at spike.test shared/sammel02 at spike.test INBOX In order to do some post-login scripting foo I'd like to get a list of shared mailboxes the user is currently subscribed to. The doveadm-mailbox man page says "It's also possible to use wildcards...
2005 Jun 09
1
Zap Clocking - Frame Slips - tdm400p wcfxo zttest cpu spikes spandsp
...991722% 483328 samples in 60.410901 sec. (483288 sample intervals) 99.991722% 483328 samples in 60.410899 sec. (483288 sample intervals) 99.991722% Estimate 8 frame slips every 12.083200 seconds. -- snip -- Background: During routine codec/dimensioning testing, I observed a strange, recurring cpu spike occuring appoximately every 12 seconds on a completely idle system with only the zaptel drivers loaded. I used 'vmstat 1' to monitor this. I was using the wcfxo driver (wildcard fxo) as a timing source. After switching to the ztdummy driver and using the usb controller as a clock source, I...
2013 Dec 03
1
Outbound traffic spike every 30 minutes
Is inbound or outbound? What port? tcp or udp? ------Mensaje original------ De: Bowie Bailey Remitente: centos-bounces at centos.org Para: CentOS mailing list Responder a: CentOS mailing list Asunto: [CentOS] Outbound traffic spike every 30 minutes Enviado: 3 de dic de 2013 19:36 Since Sunday morning, one of my CentOS servers has been generating a small spike of outbound traffic every 30 minutes (X:00 and X:30). It's not enough traffic to really cause any notice except for the fact that it is a very regular pattern an...
2009 Sep 16
3
fft help
I wrote a script that I anticipating seeing a spike at 10Hz with the function 10* sin(2*pi*10*t). I can't figure out why my plots do not show spikes at the frequencies I expect. Am I doing something wrong or is my expectations wrong? require(stats) layout(matrix(c(1,2,3), 3, 1, byrow = TRUE)) #SETUP n <- 256 #nextn(1001) gives next...
2009 May 20
1
stationarity tests
...words the CONDITIONAL CORRELATION of lag 2 given lag1 PACF(k) estimates the correlation between y(t) and y(t-k) adjusted for the effects of y(t-1), ..., y(t-k+1). Model identification is achieved by looking at the pattern of the ACF and PACF. - If the ACF dies off exponentially, but the PACF has p spikes, AR(p) is indicated. - If the ACF has q spikes and the PACF dies off exponentially, MA(q) is indicated. The ACF and the PACF for the resulting stationary series is used to determine the best B/J model for the series according to the following rules: a. If the ACF trails off and the PACF shows...
2008 Sep 10
0
STAR (Spike Train Analysis with R) uploaded on CRAN
Hi all, I've uploaded STAR (Spike Train Analysis with R) on CRAN two days ago. The package is designed to analyze neuronal spike (action potential) trains. It uses S3 classes and methods and makes heavy use of other CRAN packages like gss, R2HTML, mgcv, survival. * Analysis of both spontaneous and stimulus evoked activity is impl...
2008 Sep 10
0
STAR (Spike Train Analysis with R) uploaded on CRAN
Hi all, I've uploaded STAR (Spike Train Analysis with R) on CRAN two days ago. The package is designed to analyze neuronal spike (action potential) trains. It uses S3 classes and methods and makes heavy use of other CRAN packages like gss, R2HTML, mgcv, survival. * Analysis of both spontaneous and stimulus evoked activity is impl...
2002 Aug 15
2
Power Failures or Spikes
Hi all, My server is connected to a UPS but whenever there is a power failure or spike it seems that once all the clients come back up they cannot connect. I have to restart the server each time. This is no hardship but I was just wondering if anybody had the same problem and if so and they fixed it, how? Thanks Tom Ansley
2004 Dec 01
8
Interrupt latency problems
...oo long. I have all unnecessary services switched off and X is not running when I perform these tests. Some transmission are successful while others fail at random points. I've noticed that after I boot Linux, load zaptel, wcfxo, and wcfxs, and then run System Monitor, the CPU utilization spikes to 60% every 10 seconds. After I remove wcfxs the spikes stop, and system utilization stays at 0%. I have two TDM22B cards and get these spikes with either card in the system. This is an Athlon-64 3000+ CPU and Fedora Core 2. zaptel-1.0.2. Is there anyone who has a TDM card on a "quiet...
2004 Dec 15
3
wcfxs causing constant CPU spikes
Hi All, I have a problem (at least I think it's a problem) where the wcfxs module causes constant CPU usage spikes. The card being used is a Digium Wildcard TDM400P with 3 FXO modules and 1 FXS (TDM31B). Monitoring my otherwise idle asterisk box (with top) I see once every 3-5 seconds hi (hardware interrupt) spike to 30%-40% and then drop back to 0 again. This is the case wtih both asterisk stable and CVS HEA...