Another Hub 5 user with latency issues...

Thanks, I was unaware the 2.5G port required EEE off.

For anyone else in the same situ:

I created a tunable for:

hw.em.eee_setting

then rebooted and confirmed it is set:

root@OPNsense:~ # sysctl -a | grep eee
hw.bxe.autogreeen: 0
hw.igc.eee_setting: 1
hw.em.eee_setting: 0
dev.em.1.eee_control: 0
dev.em.0.eee_control: 0
root@OPNsense:~ # 

Unfortunately it doesn't appear to have solved the latency issues:

At the end there after I made changes and power cycled everything there's still a massive spike when testing. 

The problem is with both download and upload but is worse on the upload by a lot.

Up/Down Status:

3.0 Downstream channels
Channel	Frequency (Hz)	Power (dBmV)	SNR (dB)	Modulation	Channel ID
1	411000000	-1.3	38	QAM 256	1
2	419000000	-1.2	38	QAM 256	2
3	427000000	-1.1	38	QAM 256	3
4	435000000	-1.1	38	QAM 256	4
5	443000000	-1.2	38	QAM 256	5
6	451000000	0.9	38	QAM 256	6
7	459000000	0.9	38	QAM 256	7
8	467000000	0.6	38	QAM 256	8
9	475000000	0.5	38	QAM 256	9
10	483000000	0.4	38	QAM 256	10
11	491000000	0.3	38	QAM 256	11
12	499000000	0.2	38	QAM 256	12
13	507000000	0.3	38	QAM 256	13
14	515000000	0.3	38	QAM 256	14
15	523000000	0.2	38	QAM 256	15
16	531000000	0	39	QAM 256	16
17	539000000	0.1	39	QAM 256	17
18	547000000	0	39	QAM 256	18
19	555000000	0.1	39	QAM 256	19
20	563000000	0.1	39	QAM 256	20
21	571000000	0.1	39	QAM 256	21
22	579000000	0	39	QAM 256	22
23	587000000	0.2	39	QAM 256	23
24	595000000	0.2	39	QAM 256	24
25	603000000	0.1	39	QAM 256	25
26	611000000	0.2	39	QAM 256	26
27	619000000	0	38	QAM 256	27
28	627000000	0	38	QAM 256	28
29	635000000	0	38	QAM 256	29
30	643000000	0.2	38	QAM 256	30
31	651000000	0.2	38	QAM 256	31
32	659000000	0.4	38	QAM 256	32

3.0 Downstream channels
Channel	Locked Status	RxMER (dB)	Pre RS Errors	Post RS Errors
1	Locked	38	0	0
2	Locked	38	0	0
3	Locked	38	0	0
4	Locked	38	0	0
5	Locked	38	0	0
6	Locked	38	0	0
7	Locked	38	0	0
8	Locked	38	0	0
9	Locked	38	0	0
10	Locked	38	0	0
11	Locked	38	0	0
12	Locked	38	0	0
13	Locked	38	0	0
14	Locked	38	0	0
15	Locked	38	0	0
16	Locked	39	0	0
17	Locked	39	0	0
18	Locked	39	0	0
19	Locked	39	0	0
20	Locked	39	0	0
21	Locked	39	0	0
22	Locked	39	0	0
23	Locked	39	0	0
24	Locked	39	0	0
25	Locked	39	0	0
26	Locked	39	0	0
27	Locked	38	0	0
28	Locked	38	1	0
29	Locked	38	0	0
30	Locked	38	0	0
31	Locked	38	0	0
32	Locked	38	0	0

3.1 Downstream channels
Channel	Channel Width (MHz)	FFT Type	Number of Active Subcarriers	Modulation (Active Profile)	First Active Subcarrier (Hz)
159	94	4K	1840	QAM 4096	1108

3.1 Downstream channels
Channel ID	Locked Status	RxMER Data (dB)	PLC Power (dBmV)	Corrected errors (Active Profile)	Uncorrectable errors (Active Profile)
159	Locked	40	1.7	1964325914	0

Up:

3.0 Upstream channels
Channel	Frequency (Hz)	Power (dBmV)	Symbol Rate (ksps)	Modulation	Channel ID
0	60300000	45.8	5120	QAM 64	1
1	53700000	45.8	5120	QAM 64	2
2	46200000	46.3	5120	QAM 64	3
3	39400000	46.3	5120	QAM 64	4
4	32600000	46.3	5120	QAM 64	5
5	23600000	46.3	5120	QAM 64	6

3.0 Upstream channels
Channel	Channel Type	T1 Timeouts	T2 Timeouts	T3 Timeouts	T4 Timeouts
0	ATDMA	0	0	0	0
1	ATDMA	0	0	16	0
2	ATDMA	0	0	0	0
3	ATDMA	0	0	0	0
4	ATDMA	0	0	0	0
5	ATDMA	0	0	1	0

I'm a LAN guy so I'll have to let someone else interpret DOCSIS. Although it looks like no uncorrectable errors on the down, and a lot of corrected ones.