On 07/31/2018 10:31 AM, Martin Drescher wrote: > Hi ML members, > > I have a question about how the numbers compute which I get from > /proc/loadavg. > I'm running a bunch of HTTP servers, most of them running a RHEL 6, which is > a kernel version 2.6. All patches applied, so that Meltdown and Spectre stuff > should be included. Some of the servers where migrated to a Debian 9 with a > kernel version 4.9, also all patches applied. What I see is a tremendous > difference in /proc/loadavg. It is like 3 ~ 4 in kernel 2.6 and like 15 ~ 20 > in 4.9. It is not a real problem, that Debian is running well. > But does someone has a clue, what makes that difference?
Hi Martin, can you show real data from /proc/loadavg output? Which column do you compare? I wouldn't worry about difference in /proc/loadavg because everything is different between RHEL/CentOS 6 and Debian 9 - kernel, Apache version, different patches, etc. For example if I/O is faster on Debian 9 then it's normal to have higher CPU load on the server, if I understood you correctly. Kind regards Georgi