similar to: slugishness

I was having problems with the same server locking up to the point I can't even get in via SSH. I've already used HTB/TC to reserve bandwidth for my SSH port but the problem now isn't an attack on the bandwidth. So I'm trying to figure out if there's a way to ensure that SSH is given cpu and i/o priority. However, so far reading seems to imply that it's probably not going

Hi all, Is it possible to use the 'renice' option together with parallel clusters of type 'PSOCK'? The help page for parallel::makeCluster is not specific about which options are supported on which types and I am getting the following message when passing renice = 19 : > cl <- parallel::makeCluster(2, renice = 19) nice: ?+19?: No such file or directory Kind regards,

Hi, Although I set check.names to FALSE in read.table, the duplicate names get modified. What should be done in this case? the text file to be read by read.table AM2      AM2     AM2     FAL 2               3             4         5 1               -1           -3        -2 t = read.table ("my_file", check.names = FALSE, header = T) > t AM2      AM2.1     AM2.2     FAL

Hi Henrik, Thanks for the detailed in fast reply! My guess would be that the confusion comes from the different use of nice and renice. The workraund you provided work fine! Thanks a lot. Best, Andreas Henrik Bengtsson <henrik.bengtsson at gmail.com> writes: > Looks like a bug to me due to wrong assumptions about 'nice' > arguments, but could be because a

Looks like a bug to me due to wrong assumptions about 'nice' arguments, but could be because a "non-standard" 'nice' is used. If we do: > trace(system, tracer = quote(print(command))) Tracing function "system" in package "base" we see that the system call used is: > cl <- parallel::makePSOCKcluster(2L, renice = 19) Tracing system(cmd, wait

Last week we noticed that the default scheduler isn't being set properly in CentOS 7. I haven't checked this for CentOS 6, but it might be worth exploring. The TL;DR is unless you're running CentOS 7 on a laptop or as a virtual guest, you should probably run 'tuned-adm profile throughput-performance' I wrote up the full details here ->

Hi, for a job of lesser priority I would like to connect to a Samba server. When I'm doing a 'smbmount', enter the server by SSH, pgrep for the new smbd process and then renice it I have exactly the behaviour I desire. Now I would like to automate this and yet start the server process with lower priority. Connections to other clients shall not be touched at all. Are there any

Hello to all, For those evaluating the AMD X2 4200+ series for the purposes of running HVM guests, take a note below before purchasing if the server you are purchasing happens to be made by HP. There is an oddball version (apparently OEM sold to HP) which does *not* support AMD-V technology. I''ve seen many of these on e-bay as well as for sale / lease by popular co-location facilities.

By default asterisk (on my system) runs with NICE value "0" like most of the programs. Will the performance improve if I assign NICE value of let say -5 or -10 to asterisk? To my understanding it should as the priority will be higher than most other programs (it might even solve some echo problem). Am I right? How to start asterisk with priority let say -5? If I start the main process

Dear R help group, I am teaching myself linear mixed models with missing data since I would like to analyze a stats design with these kind of models. The textbook example is for the procedure "proc MIXED" in SAS, but I would like to know if there is an equivalent in R. This example only includes two time-measurements across subjects (a t-test "with missing values"), but I

Hi, i consider to buy a new PC for my Desktop. Now i need Windows for do some work with Photoshop. I would like to buy a AMD X2 4200 with Socket AM2 and the new Pacifica. Supports XEN this CPU together with windows nativly? How fast Windows will works with SDL? Could i use 32bit color deep with SDL? I use fast SATA-Raid with a lot of RAM 4GB ontop of Gentoo Linux Hope someone could answer

I have 4 gig in my * box. I'm tuning for performance and I'd like to ask opinions: 1. asterisk -p == renice -20 ?? 2. I've turned off swap with no apparent ill effects. Can anyone commment on long term effects with moderate load (say, 30 SIP phones / 2-3K calls /day) 3. Can anyone comment on using ramdisk as swap and whether this is a good idea or bad idea? I'm using 2.6

Hello everyone! Working on putting a storage server together and wanted to get some input as to what motherboards have been working for people with the 3ware 9650SE-12ML raid board. This is large, bulk storage, 2-tier stuff. This will not be used for realtime editing of video or something, but a gig nic is almost a given I hope. I have an AMD chip available (AM2 slot) but I can get a new chip

Dear R-users. I eventually bought myself a new computer with the following characteristics: Processor AMD ATHLON 64 DUAL CORE 4000+ (socket AM2) Mother board ASR SK-AM2 2 Ram Corsair Value 1 GB DDR2 800 Mhz Hard Disk WESTERN DIGITAL 160 GB SATA2 8MB I'm a newcomer to the Linux world. I started using it (Ubuntu 7.10 at work and FC4 on laptop) on a regular basis on May. I must say I'm

Dear R-users. I eventually bought myself a new computer with the following characteristics: Processor AMD ATHLON 64 DUAL CORE 4000+ (socket AM2) Mother board ASR SK-AM2 2 Ram Corsair Value 1 GB DDR2 800 Mhz Hard Disk WESTERN DIGITAL 160 GB SATA2 8MB I'm a newcomer to the Linux world. I started using it (Ubuntu 7.10 at work and FC4 on laptop) on a regular basis on May. I must say I'm

Hello, ZFS is behaving strange on a OSOL laptop, your thoughts are welcome. I am running OSOL on my laptop, currently b124 and i found that the performance of ZFS is not optimal in all situations. If i check the how much space the package cache for pkg(1) uses, it takes a bit longer on this host than on comparable machine to which i transferred all the data. user at host:/var/pkg$ time

HI there. First of all: xm dmesg | grep -i vmx returns nothing! Cat /proc/cpuinfo returns processor : 0 vendor_id : AuthenticAMD cpu family : 15 model : 43 model name : AMD Athlon(tm)64 X2 Dual Core Processor 3800+ stepping : 1 cpu MHz : 2009.182 cache size : 512 KB physical id : 0 siblings : 1 core id : 0 cpu cores :

While I wait for the Xen 3.0 Test CD to download, has anyone has luck using an Asus M2N32-SLI Deluxe motherboard (NVIDIA nForce 590 SLI MCP chipset)? The CPU is an AMD Athlon64 X2 3800+ AM2 w/ 2GB DDR2 533. The motherboard mostly works under Gentoo using kernel 2.6.18 with the "noapic" kernel boot option in my grub.conf file. The only major issue with the Gentoo kernel

I wonder if someone could point me to the appropriate docs for my question? If I would like to cause my system to always start 'smbd' processes at priority 7 for example, how would I go about doing that. I'm assuming there's a better way than running a cronjob every minute to renice existing processes. I'd appreciate some help pointing me in the right direction. Thanks.

Hello everyone: I have run Windows XP with XEN successfully. And I want to boot a native Windows XP(be installed normally) with XEN, or boot the XenWindows with general way(select from grub when computer starting). In other words, i want the Windows XP could be booted from two ways(general and xen). But I failed all the way. Could someone give me some advice ?