[inetstack] Bug Fix: Remove ack queue

[iyzhang]

The ack queue is no longer needed to block push operations until the other end acks. Instead, we now wait for the ack sequence number to rise above the sequence number assigned to the buffer range that we pushed.

[github-actions]

libos = catnap
commit id = 3c81ce2

collapsed_stack	num_calls	cycles_per_call	nanoseconds_per_call	percent_time
bgc::catnap::transport::epoll	13481388.60	1898.86	822.60	32.13
demikernel::sgafree	11577.34	75.92	32.43	0.04
demikernel::sgaalloc	11347.08	125.93	53.69	0.11
ioc::network::libos::push;catnap::linux::transport::push	9066.10	782.75	342.19	4.79
ioc::network::libos::push	8800.48	16812.16	7380.77	5.62
demikernel::push	8800.48	577.73	252.41	0.14
ioc::network::libos::pop;catnap::linux::transport::pop	8045.47	524.19	228.07	1.66
ioc::network::libos::pop	7836.43	3783123.83	1583952.61	25.95
demikernel::pop	7836.43	580.74	250.90	0.10
ioc::network::libos::pushto	2216.67	9252.66	3843.12	27.47
ioc::network::libos::pushto;catnap::linux::transport::push	2216.67	583.12	242.05	6.47
demikernel::pushto	2216.67	499.17	207.35	1.56
demikernel::async_close	32.50	915.09	374.74	0.01
ioc::network::libos::connect	24.95	7310012.58	3100248.79	29.37
ioc::network::libos::connect;catnap::linux::transport::connect	24.95	55186.38	23578.92	1.46
demikernel::connect	24.95	2207.52	945.78	0.01
ioc::network::libos::close	18.35	23381.76	10112.85	0.05
ioc::network::libos::close;catnap::linux::transport::close	18.35	22471.72	9719.72	96.33
demikernel::accept	15.42	1358.89	598.11	0.00
ioc::network::libos::accept	15.39	923052864.35	407250809.63	44.88
ioc::network::libos::accept;catnap::linux::transport::accept	15.39	2935.24	1275.74	0.00
demikernel::socket	9.50	125409.94	54197.66	0.16
demikernel::socket;catnap::linux::transport::socket	9.50	123655.67	53432.15	97.23
demikernel::new	1.00	256185.35	111035.16	0.06
demikernel::bind	1.00	31919.35	13908.92	0.00
demikernel::bind;catnap::linux::transport::bind	1.00	27202.62	11848.94	83.94
demikernel::listen	1.00	14964.63	6544.72	0.00
demikernel::listen;catnap::linux::transport::listen	1.00	13974.71	6112.56	93.28
demikernel::close	0.00	nan	nan	0.00

[github-actions]

libos = catpowder
commit id = 3c81ce2

collapsed_stack	num_calls	cycles_per_call	nanoseconds_per_call	percent_time
bgc::inetstack::poll_recv;inetstack::layer4_endpoint::poll_once	18937551.07	680.47	294.39	86.10
bgc::inetstack::poll_recv	9468775.53	1581.34	684.18	52.38
bgc::inetstack::tcp::established::background	22047.71	4018.38	1753.60	0.91
bgc::inetstack::tcp::established::background;tcp::established::background::acknowledger	22047.71	430.57	188.25	9.02
bgc::inetstack::tcp::established::background;tcp::established::background::receiver	22038.68	879.95	383.12	22.11
bgc::inetstack::tcp::established::background;tcp::established::background::retransmitter	22009.05	1078.46	466.18	22.13
bgc::inetstack::tcp::established::background;tcp::established::background::sender	21967.14	1892.89	833.89	37.45
ioc::network::libos::pop	9030.20	983.70	422.55	0.08
ioc::network::libos::push;inetstack::push	8762.80	673.55	296.68	0.21
demikernel::sgafree	8758.96	106.21	47.12	0.01
ioc::network::libos::push	8073.74	33630629.32	19637046.15	42.62
demikernel::push	8073.74	570.15	253.12	0.04
demikernel::sgaalloc	6524.54	141.53	64.38	0.02
demikernel::pop	6035.06	591.65	253.95	0.03
bgc::inetstack::poll_recv;inetstack::poll_bg_work::for::for	5278.63	617.77	271.56	0.72
ioc::network::libos::pushto	863.00	5364.70	2209.58	3.73
ioc::network::libos::pushto;inetstack::push	863.00	4747.56	1955.48	88.38
demikernel::pushto	863.00	593.35	244.39	0.40
bgc::inetstack::poll_recv;inetstack::poll_bg_work::for::for;udp::receive	207.33	260.12	112.88	63.90
ioc::network::libos::close	48.12	6568.51	2861.19	0.11
bgc::passive_listening::poll	44.89	5662.68	2447.44	0.00
ioc::network::libos::connect	41.86	19736.62	8675.31	0.17
bgc::inetstack::tcp::passiveopen::background	41.86	15278.30	6579.56	0.00
ioc::network::libos::accept	38.11	2740.92	1189.46	0.00
demikernel::async_close	32.50	705.01	310.50	0.01
demikernel::accept	21.86	1260.67	544.29	0.00
demikernel::connect	20.93	3604.46	1605.17	0.03
demikernel::socket	10.30	2159.33	921.51	0.00
bgc::inetstack::arp::background	6.38	1878.60	817.33	0.00
bgc::inetstack::poll_recv;inetstack::poll;inetstack::layer4_endpoint::poll_once	2.00	5263.62	2277.30	82.32
bgc::inetstack::icmp::background	1.03	3495.35	1513.46	0.00
demikernel::new	1.00	91338394.62	39700231.77	19.21
demikernel::bind	1.00	25304.56	11593.15	0.00
bgc::inetstack::poll_recv;inetstack::poll	1.00	12717.07	5503.34	0.03
demikernel::listen	1.00	7481.50	3211.62	0.00
demikernel::close	0.00	nan	nan	0.00

[github-actions]

libos = catnip
commit id = 3c81ce2

collapsed_stack	num_calls	cycles_per_call	nanoseconds_per_call	percent_time
bgc::inetstack::poll_recv;inetstack::layer4_endpoint::poll_once	29018785.87	330.64	138.22	76.78
bgc::inetstack::poll_recv;inetstack::layer4_endpoint::poll_once;catnip::runtime::receive	29018785.87	194.18	81.16	58.76
bgc::inetstack::poll_recv	14509392.93	861.82	360.41	34.63
bgc::inetstack::tcp::established::background	22053.57	2708.72	1148.81	0.45
bgc::inetstack::tcp::established::background;tcp::established::background::acknowledger	22053.57	332.54	142.32	11.76
bgc::inetstack::tcp::established::background;tcp::established::background::receiver	22041.95	590.77	245.37	22.78
bgc::inetstack::tcp::established::background;tcp::established::background::retransmitter	22009.66	1000.16	425.87	29.52
bgc::inetstack::tcp::established::background;tcp::established::background::sender	21967.66	743.91	310.43	22.09
ioc::network::libos::pop	9045.14	881.76	373.76	0.06
demikernel::sgafree	8814.51	81.94	34.77	0.00
ioc::network::libos::push;inetstack::push	8762.80	649.68	279.86	0.16
ioc::network::libos::push	8073.74	33633071.52	13619023.66	32.28
demikernel::push	8073.74	726.36	306.53	0.02
demikernel::sgaalloc	6612.83	138.99	58.30	0.01
demikernel::pop	6052.12	552.86	232.44	0.01
bgc::inetstack::tcp::established::background;tcp::established::background::sender;catnip::runtime::transmit	5497.68	394.10	163.97	15.45
bgc::inetstack::poll_recv;inetstack::poll_bg_work::for::for	3627.56	733.71	309.17	0.71
ioc::network::libos::pushto	1844.33	1416.52	569.06	0.10
ioc::network::libos::pushto;inetstack::push	1844.33	709.54	285.05	50.15
demikernel::pushto	1844.33	493.56	198.26	0.04
ioc::network::libos::pushto;inetstack::push;catnip::runtime::transmit	1844.33	258.98	104.07	36.21
bgc::inetstack::poll_recv;inetstack::poll_bg_work::for::for;udp::receive	535.33	254.12	102.70	70.95
ioc::network::libos::close	49.33	6287.80	2633.49	0.01
bgc::passive_listening::poll	42.21	6352.34	2712.33	0.00
ioc::network::libos::connect	41.86	15517.40	6535.67	0.01
bgc::inetstack::tcp::passiveopen::background	41.86	14320.00	6184.20	0.00
ioc::network::libos::connect;catnip::runtime::transmit	41.86	6367.31	2687.12	28.48
ioc::network::libos::accept	38.43	2809.70	1191.78	0.00
demikernel::async_close	32.50	578.56	228.05	0.00
bgc::inetstack::tcp::established::background;tcp::established::background::acknowledger;catnip::runtime::transmit	23.00	1249.26	560.16	22.97
demikernel::accept	21.86	1088.67	467.93	0.00
bgc::inetstack::tcp::established::background;tcp::established::background::receiver;catnip::runtime::transmit	21.34	579.09	243.78	3.44
bgc::inetstack::tcp::passiveopen::background;catnip::runtime::transmit	20.93	17599.93	7664.75	38.46
demikernel::connect	20.93	2365.31	994.39	0.00
demikernel::socket	10.30	2696.44	1133.34	0.00
bgc::inetstack::arp::background	6.60	2203.55	920.85	0.00
bgc::inetstack::poll_recv;inetstack::poll;inetstack::layer4_endpoint::poll_once	2.00	21058.22	8784.42	95.55
bgc::inetstack::poll_recv;inetstack::poll;inetstack::layer4_endpoint::poll_once;catnip::runtime::receive	2.00	18836.75	7855.68	89.20
bgc::inetstack::icmp::background	1.05	4560.12	1955.09	0.00
demikernel::new	1.00	1773304789.28	740977862.49	44.40
bgc::inetstack::poll_recv;inetstack::poll	1.00	44041.20	18374.37	0.13
demikernel::bind	1.00	11367.44	4755.47	0.00
demikernel::listen	1.00	5302.36	2228.26	0.00
bgc::inetstack::tcp::established::background;tcp::established::background::retransmitter;catnip::runtime::transmit	1.00	638.00	243.19	0.76
demikernel::close	0.00	nan	nan	0.00

[anandbonde]

Looks good.