Re: Slow terminal response Centos 7.7 1908

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"si / software interrupts" value  was 0.0
and right now with all working fine, continues to be 0.0


On Fri, Jul 3, 2020 at 11:23 AM Strahil Nikolov <hunter86_bg@xxxxxxxxx>
wrote:

> Hi Erick,
>
> what was the value of 'si' in top ?
>
> Best Regards,
> Strahil Nikolov
>
> На 3 юли 2020 г. 18:48:30 GMT+03:00, Erick Perez - Quadrian Enterprises <
> eperez@xxxxxxxxxxxxxxx> написа:
> >It was found that the software NIC  team created in Centos was having
> >issues due to a failing network cable. The team was going berserk with
> >up/down changes.
> >
> >
> >On Fri, Jul 3, 2020 at 10:12 AM Erick Perez - Quadrian Enterprises <
> >eperez@xxxxxxxxxxxxxxx> wrote:
> >
> >> Hey!
> >> I have a strange condition in one of the servers that I don't where
> >to
> >> start looking.
> >> I login to the server via SSH (cant doit any other way) and anything
> >that
> >> I type is slow
> >> HTTP sessions timeout waiting for screen redraw. So, the server is
> >acting
> >> "slow".
> >>
> >> server is bare metal. no virtual services.
> >> no alarms in the disk raid
> >>
> >> note: server was restarted because of power failure.
> >>
> >> Some outputs from this server that is a mail server:
> >> [root@correo ~]# top
> >> top - 09:54:43 up 23:51,  2 users,  load average: 0.18, 0.23, 0.28
> >> Tasks: 210 total,   1 running, 209 sleeping,   0 stopped,   0 zombie
> >> %Cpu(s):  0.2 us,  0.1 sy,  0.0 ni, 99.8 id,  0.0 wa,  0.0 hi,  0.0
> >si,
> >> 0.0 st
> >> KiB Mem : 32606084 total, 25106412 free,  5932244 used,  1567428
> >buff/cache
> >> KiB Swap: 16449532 total, 16449532 free,        0 used. 26282624
> >avail Mem
> >>
> >> **iostat**
> >> [root@correo ~]# iostat -y 5
> >> Linux 3.10.0-1062.12.1.el7.x86_64 (correo.binal.ac.pa)  07/03/2020
> >> _x86_64_        (4 CPU)
> >>
> >> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
> >>            0.05    0.00    0.05    0.05    0.00   99.85
> >>
> >> Device:            tps    kB_read/s    kB_wrtn/s    kB_read
> >kB_wrtn
> >> sda               0.00         0.00         0.00          0
> >0
> >> dm-0              0.00         0.00         0.00          0
> >0
> >> dm-1              0.00         0.00         0.00          0
> >0
> >>
> >> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
> >>            0.05    0.00    0.05    0.05    0.00   99.85
> >>
> >> Device:            tps    kB_read/s    kB_wrtn/s    kB_read
> >kB_wrtn
> >> sda              21.40         0.00       169.60          0
> >848
> >> dm-0             21.40         0.00       169.60          0
> >848
> >> dm-1              0.00         0.00         0.00          0
> >0
> >>
> >> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
> >>            0.60    0.00    0.05    0.45    0.00   98.90
> >>
> >> Device:            tps    kB_read/s    kB_wrtn/s    kB_read
> >kB_wrtn
> >> sda               1.20        16.80         0.00         84
> >0
> >> dm-0              1.20        16.80         0.00         84
> >0
> >> dm-1              0.00         0.00         0.00          0
> >0
> >>
> >> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
> >>            0.05    0.00    0.00    0.05    0.00   99.90
> >>
> >> Device:            tps    kB_read/s    kB_wrtn/s    kB_read
> >kB_wrtn
> >> sda               8.00         0.00       100.20          0
> >501
> >> dm-0              9.00         0.00       100.20          0
> >501
> >> dm-1              0.00         0.00         0.00          0
> >0
> >>
> >> avg-cpu:  %user   %nice %system %iowait  %steal   %idle
> >>            0.45    0.00    0.35    0.05    0.00   99.15
> >>
> >> Device:            tps    kB_read/s    kB_wrtn/s    kB_read
> >kB_wrtn
> >> sda               1.00         0.80         3.20          4
> >16
> >> dm-0              1.00         0.80         3.20          4
> >16
> >> dm-1              0.00         0.00         0.00          0
> >0
> >>
> >>
> >> **dstop**
> >> [root@correo ~]# dstat -cd --disk-util --disk-tps
> >> ----total-cpu-usage---- -dsk/total- sda- -dsk/total-
> >> usr sys idl wai hiq siq| read  writ|util|reads writs
> >>   1   0  99   0   0   0|  20k   17k|0.14|   1     1
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   4   0  84  11   0   0|2512k  228k|52.3| 123     2
> >>  31   4  58   7   0   0|1912k 1026k|38.1| 132    23
> >>   0   0  99   0   0   0|   0     0 |   0|   0     0
> >>   1   0  99   1   0   0|4096B 3819k|22.5|   1   270
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>  13   1  83   4   0   0| 148k 2304k|15.3|  18   214
> >>   1   0  98   1   0   0| 140k  499k|9.70|  14     8
> >>  26   5  69   0   0   0|   0  1260k|1.30|   0    46
> >>  56   7  38   0   0   0|   0   204k|0.30|   0    12
> >>  14  11  75   0   0   0|   0     0 |   0|   0     0
> >>  22  10  68   0   0   0|   0     0 |   0|   0     0
> >>  16  10  71   3   0   0| 192k   37k|14.0|  12     2
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0   152k|   0|   0     2
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>   1   1  98   1   0   0|  16k 2569k|14.8|   1   207
> >>   1   1  98   0   0   0|4096B    0 |1.10|   1     0
> >>   1   0  99   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0   600k|1.30|   0    51
> >>   2   0  98   0   0   0|   0     0 |   0|   0     0
> >>   4   0  96   0   0   0|   0     0 |   0|   0     0
> >>   0   0 100   0   0   0|   0     0 |   0|   0     0
> >>
> >>
> >>
> >> --
> >>
> >> ---------------------
> >> Erick Perez
> >> ---------------------
> >>
>


-- 

---------------------
Erick Perez
Quadrian Enterprises S.A. - Panama, Republica de Panama
Skype chat: eaperezh
WhatsApp IM: +507-6675-5083
---------------------
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