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Re: [Collectl-interest] collectl : how can I display columns : PureAcks HPAcks Loss FTrans ?
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From: <Sop...@sm...> - 2016-10-31 12:12:56
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Thank you Mark. This is not urgent so please don't put yourself out for me. Kind regards, Sophie Loewenthal Server Infrastructure Smals.be From: Mark Seger <mj...@gm...> To: Sop...@sm..., Cc: "col...@li..." <col...@li...> Date: 31/10/2016 13:07 Subject: Re: [Collectl-interest] collectl : how can I display columns : PureAcks HPAcks Loss FTrans ? looks like 3.6.3 has that format, but that is also 4 years old so no telling what had broken with newer kernels. I will try to do something in the newer versions to restore these but that won't be immediately -mark On Mon, Oct 31, 2016 at 4:33 AM, <Sop...@sm...> wrote: Hi Mark, > it came from an older version collectl, is that right? Yes it did, but copied from a blog entry. Do you recall the version with the old network stats? I can use this instead. Kind regards, Sophie Loewenthal Server Infrastructure Smals.be From: Mark Seger <mj...@gm...> To: Sop...@sm..., Cc: "col...@li..." < col...@li...> Date: 28/10/2016 16:34 Subject: Re: [Collectl-interest] collectl : how can I display columns : PureAcks HPAcks Loss FTrans ? I'm a little confused. The output in your first example looks like it came from an older version collectl, is that right? Awhile back I changed things to allow collectl to collect more network stats and so now in brief format it just shows error counts for 4 different kind of network stats. To get the specific fields, of which there are now well over 50, you need to specify a filter for the type of data you're interested in using --tcpfilt. Furthermore you need to tell collectl to report in --verbose rather than brief. This data is now reported as TCP Extended stats which you access via --tcpfilt T. To make things a little more complicated, sorry about this, since there is so much data and wanting to use fixed width fields I needed to come up with different names that were also more reflective of the data elements, which you can see if you look at /proc/net/snmp. and /proc/net/netstat. Looking more closely at both the code and the description of the output in http://collectl.sourceforge.net/Data-verbose.html I can see where making/documenting all those changes has led to some confusion. specifically, look at this: mjs@blkjak:~$ collectl -c1 -st --tcpfilt T --verbose waiting for 1 second sample... # TCP STACK SUMMARY (/sec) #<------------------------------------------TcpExt-----------------------------------------> # FasTim Reject DelAck QikAck PktQue PreQuB HdPdct AkNoPy PreAck DsAcks RUData REClos SackS 0 0 0 0 0 0 0 1 0 0 0 0 0 As it turns out, PureAcks and HPAcks are now the AkNoPy and PreAck fields. I've no idea why I called them that but can certainly clean up the documentation to say so. Also as for loss and fastretrans, I'm not reporting them at all here but do so in plot format. I'm not really sure how that happened: collectl -c1 -st -P waiting for 1 second sample... #Date Time [TCP]IpErr [TCP]TcpErr [TCP]UdpErr [TCP]IcmpErr [TCP]Loss [TCP]FTrans 20161028 10:33:04 0 0 0 0 0 0 This will take some more thinking on my part. Sorry about all this... -mark On Fri, Oct 28, 2016 at 7:43 AM, <Sop...@sm...> wrote: Dear Mark, How can I get this read out from collectl? [root@poker ~]# collectl -st waiting for 1 second sample... #<------------TCP-------------> #PureAcks HPAcks Loss FTrans 3 0 0 0 1 0 0 0 When I run this I have, # collectl -s t waiting for 1 second sample... #<-------TCP--------> # IP Tcp Udp Icmp 0 0 0 0 0 0 0 0 0 0 0 0 Version # # collectl -v collectl V4.1.0-1 (zlib:2.021) Thanks for letting me know. Kind regards, Sophie Loewenthal Server Infrastructure Smals.be Overeenkomstig de bepalingen inzake de vertegenwoordiging van de vzw in haar statuten, kan enkel de gedelegeerde bestuurder, de algemeen directeur of zijn uitdrukkelijke lasthebber verbintenissen aangaan namens Smals. Indien dit bericht niet voor u bestemd is, verzoeken wij u dit onmiddellijk aan ons te melden en het bericht te vernietigen. Conformément aux dispositions relatives à la représentation de l'asbl dans ses statuts, seul l'administrateur délégué, le directeur général ou son mandataire exprès est habilité à souscrire des engagements au nom de Smals. Si ce message ne vous est pas destiné, nous vous prions de nous le signaler immédiatement et de détruire le message. According to the provisions regarding representation of the non profit association in its bylaws, only the chief executive officer, the general manager or his explicit agent can enter into engagements on behalf of Smals. If you are not the addressee of this message, we kindly ask you to signal this to us immediately and to delete the message. ------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? Reconnect with the command line and become more productive. Learn the new .NET and ASP.NET CLI. Get your free copy! http://sdm.link/telerik _______________________________________________ Collectl-interest mailing list Col...@li... https://lists.sourceforge.net/lists/listinfo/collectl-interest Overeenkomstig de bepalingen inzake de vertegenwoordiging van de vzw in haar statuten, kan enkel de gedelegeerde bestuurder, de algemeen directeur of zijn uitdrukkelijke lasthebber verbintenissen aangaan namens Smals. Indien dit bericht niet voor u bestemd is, verzoeken wij u dit onmiddellijk aan ons te melden en het bericht te vernietigen. Conformément aux dispositions relatives à la représentation de l'asbl dans ses statuts, seul l'administrateur délégué, le directeur général ou son mandataire exprès est habilité à souscrire des engagements au nom de Smals. Si ce message ne vous est pas destiné, nous vous prions de nous le signaler immédiatement et de détruire le message. According to the provisions regarding representation of the non profit association in its bylaws, only the chief executive officer, the general manager or his explicit agent can enter into engagements on behalf of Smals. If you are not the addressee of this message, we kindly ask you to signal this to us immediately and to delete the message. ------------------------------------------------------------------------------ The Command Line: Reinvented for Modern Developers Did the resurgence of CLI tooling catch you by surprise? Reconnect with the command line and become more productive. Learn the new .NET and ASP.NET CLI. Get your free copy! http://sdm.link/telerik_______________________________________________ Collectl-interest mailing list Col...@li... https://lists.sourceforge.net/lists/listinfo/collectl-interest Overeenkomstig de bepalingen inzake de vertegenwoordiging van de vzw in haar statuten, kan enkel de gedelegeerde bestuurder, de algemeen directeur of zijn uitdrukkelijke lasthebber verbintenissen aangaan namens Smals. Indien dit bericht niet voor u bestemd is, verzoeken wij u dit onmiddellijk aan ons te melden en het bericht te vernietigen. Conformément aux dispositions relatives à la représentation de l'asbl dans ses statuts, seul l'administrateur délégué, le directeur général ou son mandataire exprès est habilité à souscrire des engagements au nom de Smals. Si ce message ne vous est pas destiné, nous vous prions de nous le signaler immédiatement et de détruire le message. According to the provisions regarding representation of the non profit association in its bylaws, only the chief executive officer, the general manager or his explicit agent can enter into engagements on behalf of Smals. If you are not the addressee of this message, we kindly ask you to signal this to us immediately and to delete the message. |