Created attachment 110624 [details] Example manually modified sgrd tab that includes the network/sockets/tcp/list measure/table network/sockets/tcp/list is not available on the list of measures to be added to a tab unlike: network/sockets/udp/list, network/sockets/unix/list, network/sockets/raw/list. If you manually edit the Tab (.local/share/ksysguard/sheetXXX.sgrd) and manually add the network/sockets/tcp/list measure to a work-sheet, it works, but, all of the graphs (on all worksheets) slow to 30+ second refresh/update times. It seems like this particular measure has some issue (and that is why it isn't included in the list to select perhaps?). The attached demonstrates the issue.
Found this in the source: if ((netstat = fopen("/proc/net/tcp", "r")) != NULL) { 0200 registerMonitor("network/sockets/tcp/count", "integer", printNetStat, printNetStatInfo, sm); 0201 /* This monitor takes _way_ too much time (up to a minute, or more) since it does DNS lookups 0202 Hide the monitor, leaving it there for backwards compatibility */ 0203 registerLegacyMonitor("network/sockets/tcp/list", "listview", printNetStatTcpUdpRaw, printNetStatTcpUdpRawInfo, sm); 0204 fclose(netstat); 0205 } This seems to indicate the issue is related to DNS look-ups. Any way to enable this without DNS look-ups (just so addresses)?
Seems like this: 0129 char *get_host_name(int addr) 0130 { 0131 static char buffer[1024]; 0132 struct hostent *host; 0133 struct in_addr a_addr; 0134 0135 if (addr == 0) { 0136 return (char *)"*"; 0137 } 0138 0139 memset(buffer, 0, sizeof(buffer)); 0140 0141 if ((host = gethostbyaddr((char *)&addr, 4, AF_INET)) == NULL) { 0142 a_addr.s_addr = addr; 0143 return inet_ntoa(a_addr); 0144 } else { 0145 strncpy(buffer, host->h_name, sizeof(buffer)-1); 0146 buffer[sizeof(buffer) -1] = 0; 0147 return (char *)buffer; 0148 } 0149 } Should be changed to have a timeout on "gethostbyaddr" of some small number of milliseconds (maybe like 10 ms)? Of course, that would involve an interruptable/time-outable get_host_by_addr wrapper of some sort. Ideally, this would simply put the physical address in the column and do the lookups async and populate the model with the host-names in the background if it was still wanted.
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This bug has been in NEEDSINFO status with no change for at least 30 days. The bug is now closed as RESOLVED > WORKSFORME due to lack of needed information. For more information about our bug triaging procedures please read the wiki located here: https://community.kde.org/Guidelines_and_HOWTOs/Bug_triaging Thank you for helping us make KDE software even better for everyone!