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RTC: Stat the drop of UDP packets.

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This commit is contained in:
winlin 2021-02-24 18:53:49 +08:00
parent 243100817a
commit 3a7c742f07
4 changed files with 140 additions and 1 deletions
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42
trunk/src/app/srs_app_utility.hpp
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@ -547,6 +547,48 @@ extern SrsPlatformInfo* srs_get_platform_info();
// The daemon st-thread will update it.
extern void srs_update_platform_info();
class SrsSnmpUdpStat
{
public:
// Whether the data is ok.
bool ok;
// send and recv buffer error delta
int rcv_buf_errors_delta;
int snd_buf_errors_delta;
public:
// @see: cat /proc/uptimecat /proc/net/snmp|grep 'Udp:'
// @see: https://blog.packagecloud.io/eng/2017/02/06/monitoring-tuning-linux-networking-stack-sending-data/#procnetsnmp
// InDatagrams: incremented when recvmsg was used by a userland program to read datagram.
// also incremented when a UDP packet is encapsulated and sent back for processing.
unsigned long long in_datagrams;
// NoPorts: incremented when UDP packets arrive destined for a port where no program is listening.
unsigned long long no_ports;
// InErrors: incremented in several cases: no memory in the receive queue, when a bad checksum is seen,
// and if sk_add_backlog fails to add the datagram.
unsigned long long in_errors;
// OutDatagrams: incremented when a UDP packet is handed down without error to the IP protocol layer to be sent.
unsigned long long out_datagrams;
// RcvbufErrors: incremented when sock_queue_rcv_skb reports that no memory is available;
// this happens if sk->sk_rmem_alloc is greater than or equal to sk->sk_rcvbuf.
unsigned long long rcv_buf_errors;
// SndbufErrors: incremented if the IP protocol layer reported an error when trying to send the packet
// and no error queue has been setup. also incremented if no send queue space or kernel memory are available.
unsigned long long snd_buf_errors;
// InCsumErrors: incremented when a UDP checksum failure is detected.
// Note that in all cases I could find, InCsumErrors is incremented at the same time as InErrors.
// Thus, InErrors - InCsumErros should yield the count of memory related errors on the receive side.
unsigned long long in_csum_errors;
public:
SrsSnmpUdpStat();
~SrsSnmpUdpStat();
};
// Get SNMP udp statistic, use cache to avoid performance problem.
extern SrsSnmpUdpStat* srs_get_udp_snmp_stat();
// The daemon st-thread will update it.
void srs_update_udp_snmp_statistic();
// The network device summary for each network device, for example, eth0, eth1, ethN
class SrsNetworkDevices
{