[Cake] [Bloat] New board that looks interesting
dos at scarff.id.au
Sun Jan 3 21:11:24 EST 2021
Any stats on how much power it pulled during your tests and when idle?
On Fri, 18 Dec 2020 15:48:46 -0800, Aaron Wood wrote:
> I have, finally. It's been running for a week or so, now.
> OpenWRT was an _adventure_. The board is UEFI, not standard bios..
> And while it will merrily boot OpenWRT's non-uefi images off of USB,
> it won't boot the non-UEFI setup from the internal storage (I'm using
> the eMMC). So _that_ was fun (and I made some dumb mistakes that
> were especially fun to correct.
> But it's running OpenWRT 19.07 (and a UEFI bootloader before grub
> that's from ToT OpenWRT).
> Anyway, I have cake running, 950Mbps ingress and 35Mbps egress (modem
> is provisioned at 1.3G ingress, and a bit over 35Mbps egress).
> fq_codel was defaulted, in multi-queue mode. While I'm using cake
> on ingress, my local link hasn't been hitting the limiter very often:
> Tin 0
> thresh 950Mbit
> target 1.5ms
> interval 30.0ms
> pk_delay 22us
> av_delay 9us
> sp_delay 2us
> backlog 0b
> pkts 243608193
> bytes 250748364896
> way_inds 13167720
> way_miss 1245030
> way_cols 0
> drops 1075
> marks 101
> ack_drop 0
> sp_flows 0
> bk_flows 1
> un_flows 0
> max_len 69876
> quantum 1514
> Given that most of the hosts that I interact with are only about
> 10-15ms away, I'm probably going to change the interval target to
> better match that.
> Interestingly, while it has a pair of multiqueue NICs (i211s), the
> igbe driver isn't configuring them for RSS. Both output queues are
> being used, but not the ingress queues:
> wan interface:
> tx_queue_0_packets: 56635989
> tx_queue_1_packets: 39777210
> rx_queue_0_packets: 243646072
> rx_queue_1_packets: 0
> lan interface:
> tx_queue_0_packets: 85047897
> tx_queue_1_packets: 162004500
> rx_queue_0_packets: 111174855
> rx_queue_1_packets: 0
> Since I have housemates that don't appreciate me messing with the
> network during their meetings, I haven't gotten around to poking more
> deeply at that (or at experimenting with running cake on two ingress
> That being said, I bench-tested this before I put it into operation
> and was able to see 940Mbps of iperf goodput through cake and NAT...
> Took all of a core, though (and that core was still cold and
> potentially able to boost to 2.5GHz). I haven't determined how long
> it will take to thermally throttle, and if bandwidth suffers as a
> Pretty happy with it so far, though.
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