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Questions tagged [high-load]

All aspects of high-loaded systems development and maintenance.

All aspects of high-loaded systems development and maintenance: design, algorithms, architecture, technologies, development, testing, databases, storage, support, hardware, hosting, management.

219 questions
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ksoftirqd hitting 100% on interface with ixgbe driver

This is my driver information. ethtool -i ethXX driver: ixgbe version: 3.9.15-NAPI firmware-version: 0x800000a5 bus-info: 0000:04:00.0 supports-statistics: yes supports-test: yes supports-eeprom-access: yes supports-register-dump: yes Now I have an…
pandagirija
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Optimize php-fpm and varnish for a powerful server

My setup is Intel® Core™ i7-2600 and RAM 16 GB DDR3 RAM varnish+nginx+php-fpm+apc for a not very heavy WordPress blog with W3 Total Cache and CDN My problem is that after 55 hits per second according to blitz.io varnish starts giving out timeouts.…
Jim
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Insufficient channel capacity of 1GBit

There is a Caching Server (Varnish): it receives data from Amazon S3 on request, saves it for some time and gives it to the client. We have encountered the problem of insufficient channel capacity of 1GBit. Peak load within 4 hours completely chokes…
Roman Skvazh
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Expecting High traffic on website..How to manage

I am expecting high traffic on a corporate website i am managing.At present the website is hosted on godaddy shared hosting. As it will be an IPO for my clients company so i don't have any idea what kind of traffic surge there would be. How should i…
sunny
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Identifying bottleneck with nginx VPS load testing

I'm trying to optimize a Digital Ocean droplet (512mb), testing using loader.io I'm testing on my homepage, which is HTTPS / PHP. I setup FastCGI page cache, which got me from 100 req/sec to 2,000 req/sec. But anything beyond 2,000 req/sec is…
jm92
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Load testing at 350,000 requests per minute

I need a way to reproduce the sudden burst of traffic our site experienced a while ago, to have a chance to keep our stack working. Our load balancer reported at a certain point that some 350k requests were performed per minute, trashing everything,…
John Smith
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Strange values in linux system load

I am trying to understand system load on one linux server: $uptime 15:01:45 up 52 days, 19:48, 1 user, load average: 0.63, 1.76, 4.81 Loads are always 1 minute < 5 minutes < 15 minutes. Distributor ID: RedHatEnterpriseServer Release: …
Adewzen
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run cron job only if load not too high

I need to synchronize two systems, so the producers list new entities to be created on the consumer app. It has no realtime need (mostly for datamining, so being a few hours behind isn't an issue), but it's important that this task doesn't run when…
Xavier
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WHM/CPANEL - High cpu and memory usage from Analog Stats

A single process is taking 100% of the cpu and 70% of the memory and starts every day on different account; /usr/local/cpanel/3rdparty/bin/analog +CIMAGEDIR /images/ +CDOMAINSFILE /usr/local/cpanel/3rdparty/share/analog/usdom.tab +CCHARTDIR ./…
Бай Иван
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High Server Load cannot figure out why

My server is currently running CentOS 5.2, with WHM 11.34. Currently, we're at 6.43 to 12 for a load average. The sites that we're hosting are taking a lot time to respond and resolve. top doesn't show anything out of the ordinary and iftop…
Tango Bravo
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Huge load on Centos, many apache processes

I'm experiencing a huge load on my server at the moment and I can't figure out why. When I use the 'top' command, there's hundreds of apache processes with the command "aux", but I can't find anything online that tells me what it means. The load…
dKen
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High load on Xen guests

We're facing a weird issue with a freshly installed Xen (4.2) system. The server is an Intel SR1690WB equipped with 4x1Tb HDD and with a RS2BL040 RAID card which configured to use RAID10. The problem is that any newly spawned paravirtualized guest…
fabrik
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Explain load averages on Solaris 10

I understand load averages on Linux, but am a bit mystified by the load averages on a legacy Solaris 10 machine my app runs on. The load averages seem impossibly high. Here's the output. [netcool1 (root)/]$ uptime 11:49am up 580 day(s), 10:51, …
coding_hero
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High CPU from httpd process

I am currently getting high CPU on a server that is just running a couple of sites with very low traffic. One of the sites is in still development going live soon. However, this site is very very slow...When browsing through its pages I can see that…
KHWeb
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CPU load for high performance computing

Is there a reasonable/safe level of CPU load in the context of high performance computing? I understand the meaning of load average for servers in general, but do not know what to expect for servers built and used for high performance computing. Is…
ascendants
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