All FE NIC settings were changed in relation to IPC glitch.

Background
In past DGS tests, the NIC setting (ITR: InterruptThrottleRate) on the FrontEnd side improved performance.
Currently, such settings have not been made.
We will check if changing ITR this time leads to improvement of IPC glitch.

Procedure
1. Log in to the FE.
2.sudo ethtool -C eth1 rx-usecs 0

Result
We plan to check the occurrence of IPC Glitch for a few days.
There seems to be no abnormal load as far as I can see with vmstat.
The values of in and cs are increasing and decreasing, but the changes are acceptable (they change every time data is acquired).
(k1px1 and k1test0 were changed to August 10 in advance for testing.
k1ioo forgot to take the data.)
         before                after
-        in   cs us sy  id wa   in   cs us sy  id wa
k1lsc0   20   52 26  2  71  0   46   33 26  2  71  0
k1asc0    3   31 29  2  69  0    7   30 29  2  69  0
k1als0   11    5  1  0  99  0    0   12  1  0  99  0
k1ioo   -                       59   14 13  1  86  0
k1ioo1   16    0  6  1  94  0   31   21  6  1  94  0
k1imc0    7    6 16  2  82  0   31   60 16  2  82  0
k1pr2    11    4  2  0  97  0   21   14  2  0  97  0
k1pr0    20   16  2  0  97  0    5    2  2  0  97  0
k1prm0   19   12  2  0  97  0    4   22  2  0  97  0
k1mcf0    0    0  0  0 100  0    0    0  0  0 100  0
k1bs      6    4  4  0  96  0   16   15  4  0  96  0
k1sr2     4    4  4  0  96  0   13   15  4  0  96  0
k1sr3    18   29  7  1  93  0   33   11  7  1  93  0
k1srm    16   15  5  0  95  0    2    2  5  0  95  0
k1omc0   60    7 18  2  80  0   10   53 18  2  80  0
k1omc1    1    1  0  0  99  0    0    0  0  0  99  0
k1ix1     1    0  6  0  94  0    0    0  6  0  94  0
k1iy1     0    2  7  1  92  0    3    1  7  1  92  0
k1ex1     0    1  9  1  91  0    0    1  4  1  95  0
k1ey1     1    0  6  0  94  0    0    1  6  0  94  0
k1ex0     1    0  4  1  95  0    0    1  4  1  95  0
k1ey0    33   25  5  1  94  0    1    0  5  1  94  0
*k1px1                           1    0  0  0 100  0
*k1test0                         0    1 16  2  82  0
k1iy0     0    0  1  0  99  0    0    0  1  0  99  0
in Number of interrupts per second, including clock interrupts
cs Number of context switches per second
us Time used to execute non-kernel code (including user time and nice time) (%)
sy Time used to execute kernel code (system time) (%)
id Idle time (%)
wa IO wait time (%)

k1boot:/diskless/root/etc/rc.Local
Before /usr/sbin/ethtool -C eth1 rx-usecs 1
After /usr/sbin/ethtool -C eth1 rx-usecs 0