braice
commented
7 years ago Hello
I can only do an educated guess from here. But before that do we have any source code from astra sm
I guess they send the packets to libdvbsa in bigger chunks but would be good to check on a piece of code.
Otherwise they also may use different config parameters but as I didn't wrote this code it is hard to say more without digging further.
Brice
On Jan 23, 2017 01:22, "anphsw" notifications@github.com wrote:
On FTA TPs it'ok, 1-2%, but if I enable scam decrypt (BISS), CPU USAGE goes to 20%, but it's not decryption penalty, I tried also astra-sm in same setup, and it consumes no more than 5% of CPU.
here is config: mumudvb: `# 55E LNB master
card=0 tuning_timeout=0 timeout_no_diff=0
lnb_type=universal pol=v freq=12522 srate=27500
autoconfiguration=full autoconf_radios=0 autoconf_scrambled=1
unicast=1 port_http=8070
multicast_ipv4=0 multicast_ipv6=0
dont_send_scrambled=1 playlist_ignore_dead=1
dvr_buffer_size=1024
scam_support=1 ring_buffer_default_size=262144 oscam:[global] nice = -1 WaitForCards = 0
logfile = stdout; syslog
pidfile = /var/run/oscam.pid lb_savepath = /var/run/oscam/lbstat
[anticasc] enabled = 0
[dvbapi] enabled = 1 au = 1 boxtype = pc user = mumudvb pmt_mode = 4 request_mode = 1
[reader] label = static_biss protocol = constcw device = /etc/oscam/biss.key group = 1
perf-top while using mumudvb:PerfTop: 2554 irqs/sec kernel:33.5% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)42.64% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_block_decrypt_batch 14.52% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_stream_cipher_batch 5.19% [kernel] [k] rtl8169_interrupt 3.29% [dvb_core] [k] dvb_dmx_swfilter_section_copy_dump 1.31% [kernel] [k] sysenter_past_esp 1.05% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_stream_transpose_out 1.03% [kernel] [k] _raw_spin_lock 0.91% libpthread-2.22.so [.] pthread_mutex_lock 0.90% mumudvb [.] main 0.87% [dvb_core] [k] dvb_dmx_swfilter_packet 0.81% libpthread-2.22.so [.] pthread_mutex_unlock_usercnt 0.78% [kernel] [k] __copy_to_user_ll 0.68% [vdso] [.] kernel_vsyscall 0.68% [ip_tables] [k] ipt_do_table 0.66% [kernel] [k] _raw_spin_lock_irqsave 0.58% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_block_transpose_in
astra config:#!/usr/bin/env astra-sm
package.path = "/etc/dvb/scripts-sm/?.lua";
require("stream") require("playlist")
-- 55E, LNB master
adapter_single = dvb_tune({ type = "S", adapter = 0, tp = "12522:V:27500", lnb = "9750:10600:11700", -- Ku universal })
make_channel({ name = "Kanal Disney +2", input = { "dvb://adapter_single#pnr=2&biss=XXXXXXXXXXXXXXXX", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/2" }, })
make_channel({ name = "U +2", input = { "dvb://adapter_single#pnr=3", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/3" }, })
make_channel({ name = "GTRK Groznyj", input = { "dvb://adapter_single#pnr=4", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/4" }, })
make_channel({ name = "TV 41", input = { "dvb://adapter_single#pnr=120", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/120" }, })
http_server({ port = 9100, route = {{ "/playlist.m3u", playlist_request }} })
perf-top while using astra:PerfTop: 156 irqs/sec kernel:31.4% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)42.11% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_block_decrypt_batch 13.44% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_stream_cipher_batch 4.54% [kernel] [k] rtl8169_interrupt 4.29% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_stream_transpose_out 2.57% [dvb_core] [k] dvb_dmx_swfilter_packet 1.98% [tbs_pcie_dvb] [k] tbs6902_pcie_irq 1.45% [dvb_core] [k] dvb_dmx_swfilter_packets 0.89% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_block_transpose_in 0.80% libdvbcsa.so.1.0.1 [.] dvbcsa_bs_block_transpose_out 0.79% [kernel] [k] _raw_spin_lock_irqsave 0.77% [kernel] [k] sysenter_past_esp 0.72% [kernel] [k] _raw_spin_lock 0.71% [kernel] [k] irq_entries_start 0.54% [tbs_pcie_dvb] [k] adapter_tasklet 0.49% astra-sm [.] __module_stream_send
`
Same libdvbcsa calls, but huge diffirence: 2554 vs 156 irq/s. Is there way to tune mumudvb config to reduce usage?
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anphsw
On FTA TPs it'ok, 1-2%, but if I enable scam decrypt (BISS), CPU USAGE goes to 20%, but it's not decryption penalty, I tried also astra-sm in same setup, and it consumes no more than 5% of CPU.
here is config: mumudvb:
` card=0 tuning_timeout=0 timeout_no_diff=0
lnb_type=universal pol=v freq=12522 srate=27500
autoconfiguration=full autoconf_radios=0 autoconf_scrambled=1
unicast=1 port_http=8070
multicast_ipv4=0 multicast_ipv6=0
dont_send_scrambled=1 playlist_ignore_dead=1
dvr_buffer_size=1024
scam_support=1 ring_buffer_default_size=262144
oscam:[global] nice = -1 WaitForCards = 0logfile = stdout; syslog
pidfile = /var/run/oscam.pid lb_savepath = /var/run/oscam/lbstat
[anticasc] enabled = 0
[dvbapi] enabled = 1 au = 1 boxtype = pc user = mumudvb pmt_mode = 4 request_mode = 1
[reader] label = static_biss protocol = constcw device = /etc/oscam/biss.key group = 1 `
perf-top while using mumudvb: ` PerfTop: 2554 irqs/sec kernel:33.5% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
astra config:!/usr/bin/env astra-sm
package.path = "/etc/dvb/scripts-sm/?.lua";
require("stream") require("playlist")
-- 55E, LNB master
adapter_single = dvb_tune({ type = "S", adapter = 0, tp = "12522:V:27500", lnb = "9750:10600:11700", -- Ku universal })
make_channel({ name = "Kanal Disney +2", input = { "dvb://adapter_single#pnr=2&biss=XXXXXXXXXXXXXXXX", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/2" }, })
make_channel({ name = "U +2", input = { "dvb://adapter_single#pnr=3", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/3" }, })
make_channel({ name = "GTRK Groznyj", input = { "dvb://adapter_single#pnr=4", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/4" }, })
make_channel({ name = "TV 41", input = { "dvb://adapter_single#pnr=120", "file:///usr/lib/matras_sd.ts#loop" }, output = { "http://0.0.0.0:8070/bysid/120" }, })
http_server({ port = 9100, route = {{ "/playlist.m3u", playlist_request }} }) `
perf-top while using astra: ` PerfTop: 156 irqs/sec kernel:31.4% exact: 0.0% [4000Hz cycles], (all, 2 CPUs)
`
Same libdvbcsa calls, but huge diffirence: 2554 vs 156 irq/s. Is there way to tune mumudvb config to reduce usage?