similar to: high context switching and high load averages slowing down system

I made a mistake in my previous email what I want to know about is the component called lli which is part of the LLVM compiler infrastructure. The command lli allow for programs compiled to bytecode to be run directly. 1. How does the lli keep itself from being overwritten by a misbehaving program? 3. does it support multithreading? 4. does lli allow for multitasking or do you just ran one VM

Currently, some new storage devices have the ability to do performance optimizations according to the type of data payload - say, file system metadata, time-stamps, sequential write in some granularity, random write and so on. For example, the latest eMMC 4.5 device can support the so-called ''Context Management'' and ''Data Tag Mechanism'' features. By receiving

Hello. Read all about Extprograms, but have a question. Use case: Every day we have couple messages with attachment (from one sender, this is one-way communication). This attachment is uploads to ownCloud. By hand... need some automation. As I see, pipe cat execute scripts with text data USER/FROM/SUBJECT - and I think with variables it can be any text data, how about attachment? How I see

I recently downloaded and installed binary versions of Samba 2.0.7 on two Sun Microsystems platforms running Solaris 7. One of the machines is an Enterprise 5000 and the other is an Ultra 10. I set up both servers for USER lever security and set all shares to be browseable. Both were set to be in workgroup SUN. When first installed, both machines appeared in workgroup Sun under Entire Network on

Hello again, when the iozone writes slow. This is how slabtop looks like: 62476752 62476728 0% 0.10K 1601968 39 6407872K buffer_head 1000678 999168 0% 0.56K 142954 7 571816K radix_tree_node 132184 125911 0% 0.03K 1066 124 4264K kmalloc-32 118496 118224 0% 0.12K 3703 32 14812K kmalloc-node 73206 56467 0% 0.19K 3486 21

Hi LLVM devs, I’d like to describe my problem, and then propose new features of LLVM which would solve it efficiently. I'm building a new statically-compiled programming language, and I plan on using LLVM as the backend. The language will have a runtime with cooperatively managed green threads (user-space "mini-threads", each with their own dynamically allocated stack). A single OS

Hello, I have cluster with AMD EPYC 7351 cpu. Two CPUs per node. I have performance 8-NUMA configuration: This is from hypervizor: [root@hde10 ~]# lscpu Architecture: x86_64 CPU op-mode(s): 32-bit, 64-bit Byte Order: Little Endian CPU(s): 64 On-line CPU(s) list: 0-63 Thread(s) per core: 2 Core(s) per socket: 16 Socket(s): 2 NUMA

Hi all, I just arrived in Italy from Cebit, qhere I spoke with digium and Beronet people. They told me to try to use the mISDN stack to drive beronet and the new upcoming digium ISDN Cards. SO I searched, find http://www.beronet.com/download/card_installation_guide.pdf, and I immediately got the error: asterisk01:~ # cd /usr/src/install-misdn/ asterisk01:/usr/src/install-misdn # make install

Greetings, I had downloaded c6 64 bits ISO, selected all packages to be installed. One dependency warning relating to Emacs appeared. I chose to continue. Unfortunately I was multitasking and did not note down the package name Twice this issue appeared -- first time around aborted install due to power cut. Did anybody else face this situation? Also is there a better way with just DVDs and not

On 31-07-15 18:45, Patrick Masotta wrote: >>>> > Is this possible? Are you saying the FW is stealing the DHCP response > away before iPXE gets it? I haven't thought of this possibility. > > Or am I misunderstanding you? > <<< > > I'm saying that "probably" iPXE is trigerring a new PXE sequence with a different arch but > the one

I have a question about multiple cores and CPU's for running R. I've been running various tests on different types of hardware and operating systems (64 bit, 32 bit, Solaris, Linux, Windows, RV.10, .12, .15, .15.1.) Generally speaking, it seems that for a single user and process that R prefers to have as much resources as possible; especially memory. I've looked at some of the r-sig

On Sun, Oct 21, 2012 at 11:01:37AM -0700, Tobias Grosser wrote: > On 10/21/2012 10:57 AM, Jack Howarth wrote: >> On Sun, Oct 21, 2012 at 10:38:48AM -0700, Tobias Grosser wrote: >>> On 10/21/2012 09:13 AM, Jack Howarth wrote: >>>> On Sun, Oct 21, 2012 at 08:38:21AM -0700, Tobias Grosser wrote: >>>>> On 10/20/2012 05:38 PM, Jack Howarth wrote:

Sorry, I certainly didn't mean to be dishonest. I was just repeating one of the comparisons given by the research paper. Regardless, even setjmp() uses a structure of 148 bytes in size (on my machine). The main point is that with compiler support, many context switches can be easily reduced to just a few instructions and only 8 byte of memory, and even in the worst case they will outperform

Hai Marco, Yes, best is to use the "localhost" dns setup as caching/forwarder only. All you need is for the forwarding is : zone "your.dnsdomain.tld" { type forward; forwarders { IP_DC1; IP_DC2; }; }; zone "168.192.in-addr.arpa" { type forward; forwarders { IP_DC1; IP_DC2; }; }; If you think its still to slow, remove > options attempts:2

HI, Is it possible to specify CONFIG_PREEMPT_RT=y in the Dom0 kernel? It seems that it is forbidden as it is not a menu option in make menuconfig and gets removed if I manually add it to the .config. I want to run a sound server on Dom0 and am having problems with xruns at present, so need to be able to run a preemptive kernel. Thanks, Chris _______________________________________________

I decided to install Win2K on my "retrogaming/htpc" system to take advantage of the dual processors in the thing when I'm multitasking a lot, but, it's kind of annoying having to use first one bootloader to chainload my Windows 98 partition, then, via NTLDR, selection Windows 2000 to get to Win2k. I tried using the recovery console to try to force it to write a boot sector to

Hello I have time data which is in hh:mm:ss format and I need to calculate averages for this data. I tried converting the data as integer so that I could calculate the average, but it doesn't serve the purpose. I tried using Chron package also. But I am stuck up as to how to deal with the time data. Please guide me as to how to deal with Time data in R. Thank you in advance Regards Sunita

Heya.. Yesterday someone "attacked" by box by connection to several ports.. In other words, a simple portscan.. yet, since my box has "log_in_vain" enabled, so it tries to log everything to /var/log/messages, since the logfile got full and the size went over 100K, it tried to rotate the log to save diskspace. (Apr 16 21:00:00 omikron newsyslog[32137]: logfile turned over due

I am stuck at the following problem. I have two moving averages. One is faster than another. After plotting them I need to shade area between them in green when the faster is above slower and red where faster is below slower. Something like this: http://charts.stocktwits.com/production/original_9205513.png?1345576091 I tried with polygon but I can't do it. Any hints? Regards olo -- View

Problem as follows: 1) Plug in an external USB drive. 2) Mount it anywhere. Doesn't matter how. 3) Copy a few GB of data to the drive from a non-USB disk. 4) Watch the load average "climb" to 5.x, sometimes 10.x or more. Why? This on an otherwise unloaded system. Doesn't matter how many cores, how much RAM, 32/64 bit, etc. Why should copying some files to a USB drive cause