CentOS 6 Slooooow

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cliffconway
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Joined: 2018/07/23 12:29:11

CentOS 6 Slooooow

Post by cliffconway » 2018/07/23 12:45:11

Hi All,

Noobie question, just installed CentOS6 and the speed is very slow.

My brief hardware configuration:-
- Intel® Core™ i7-7740X Quad Core (4.30GHz @ up to 5.0GHz)
- 32GB Ram
- 1st M.2 SSD Drive 1TB SAMSUNG SM961 M.2, PCIe NVMe (up to 3200MB/R, 1800MB/W)
- 1st Hard Disk 1TB WD Blue™ 2.5" SSD, SATA 6Gb/s (upto 545MB/sR | 525MB/sW)
- 2nd Hard Disk 2TB SEAGATE FIRECUDA 3.5" SSHD - UP TO 5X FASTER THAN HDD!
- 3rd Hard Disk 2TB SEAGATE FIRECUDA 3.5" SSHD - UP TO 5X FASTER THAN HDD! - this is where the CentOS 6 is installed


CentOS typically takes about a minute to boot up then processes take a long time. This may be ok. However, other processes seem to take longer than expected. Browser access 10 seconds plus (i have tried many sites that usually have a fast response time). I accept that response time is a very subjective thing but I am comparing my experience with Windows 10 on the same hardware - there is no comparison (20 second boot up time, applications fire up within seconds, browser access to most sites almost instantaneous).

Any thoughts would be much appreciated - remember I am a noobie to CentOS (and Linux in general). BTW I accepted defaults were appropriate during the installation of CentOS 6.10 i.e. for the disk layout etc...

Thanks in advance,

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TrevorH
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Re: CentOS 6 Slooooow

Post by TrevorH » 2018/07/23 14:47:05

Not really sure why you'd install CentOS 6 - which came out in 2010 - on a machine that sounds pretty much brand new. CentOS 6 is now on life support and has only a little over 2 years left before it goes EOL. Only critical security bugs will be fixed in CentOS 6 from now on (or the ones that Redhat deem important enough to fix). I doubt if CentOS 6 even has drivers for your nvme drive.

CentOS 7 was released in 2014 and has many many speed improvements, not the least of which is systemd which parallelizes the start up process and reduces boot up times to ~10s on most machines.
CentOS 5 died in March 2017 - migrate NOW!
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Whoever
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Re: CentOS 6 Slooooow

Post by Whoever » 2018/07/23 14:56:10

Often slowdowns are related to name resolution: your DNS isn't working properly.

cliffconway
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Re: CentOS 6 Slooooow

Post by cliffconway » 2018/07/23 17:21:57

TrevorH wrote:
2018/07/23 14:47:05
Not really sure why you'd install CentOS 6 - which came out in 2010 - on a machine that sounds pretty much brand new. CentOS 6 is now on life support and has only a little over 2 years left before it goes EOL. Only critical security bugs will be fixed in CentOS 6 from now on (or the ones that Redhat deem important enough to fix). I doubt if CentOS 6 even has drivers for your nvme drive.

CentOS 7 was released in 2014 and has many many speed improvements, not the least of which is systemd which parallelizes the start up process and reduces boot up times to ~10s on most machines.
TrevorH wrote:
2018/07/23 14:47:05
Not really sure why you'd install CentOS 6 - which came out in 2010 - on a machine that sounds pretty much brand new. CentOS 6 is now on life support and has only a little over 2 years left before it goes EOL. Only critical security bugs will be fixed in CentOS 6 from now on (or the ones that Redhat deem important enough to fix). I doubt if CentOS 6 even has drivers for your nvme drive.

CentOS 7 was released in 2014 and has many many speed improvements, not the least of which is systemd which parallelizes the start up process and reduces boot up times to ~10s on most machines.
The reason for using CentOS 6 is related to supporting a client's request. So no option here. NOW, do you have anything to say about the possible reasons for slow speed using CentOS 6 on what is a reasonable bit of hardware by most standards?

cliffconway
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Joined: 2018/07/23 12:29:11

Re: CentOS 6 Slooooow

Post by cliffconway » 2018/07/23 17:23:05

Whoever wrote:
2018/07/23 14:56:10
Often slowdowns are related to name resolution: your DNS isn't working properly.
Currently I am running the setup as a stand alone development environment so no DNS involved.

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TrevorH
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Re: CentOS 6 Slooooow

Post by TrevorH » 2018/07/23 19:15:43

There's always dns involved.
CentOS 5 died in March 2017 - migrate NOW!
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