Hello Not sure if this is useful:
There should be a "?client-list" command on the server telling you how many connections are active. tcpborphserver.h defines TBS_MAX_CLIENTS to 32, though I remember there also being an earlier (or was it a different ?) limit of 4 too - perhaps some repositories have that value ? regards marc On Sun, Dec 8, 2024 at 4:53 PM Ken Semanov <shapkiqua...@gmail.com> wrote: > I need to know everything about what is happening in the PS side with the > katcp server. Otherwise I cannot email the author of the katcp package to > ask questions about it. He will need to know exactly what we are doing with > CASPERized Linux. This is already going to be difficult > > > > > > > > > > > > > > > > > > > > > > > > > > > > <https://report.mimecastcybergraph.com?magiclink=https%3A%2F%2Fapi.services.mimecast.com%2Foauth2%2Fauthorize%3Fresponse_type%3Dcode%26client_id%3Do20nRkVXf7VUVnANkXhoOwGytEwGN0YAlyeDJn7oBTGNl2kN%26state%3DeyJhbGciOiJSU0EtT0FFUC0yNTYiLCJlbmMiOiJBMjU2R0NNIn0.Fk8VdkoqlzG0guBxgAUKpFmPfX1ESIhMuGWA2eiwoXUZXN3KgJkfXS_r0L39R7Hbagmfel7DexJrq0yqAFm15sq7upsup9viMaNkXrj4MFSEL4t5bK3kuEp3oQhqNgvAa8lo2SZ0zAKWRgBg6XwhK0VFGN1ofuF8j-A5VEKiNEGzYcybSxql7uTsizwGXFET9KaNhvNWnCvIeGePM-lmbo4P5a-TJdK6b_qnL00pALjyZdpWIvvq7RJfYZNaEPsU1_qbg5XXByAf1aP-6FaPclYynFaK6_kjsU-uJcFfJKAaq6ZoW2hKB4p61ZbR40eeef97e5unL69KYdKWc-LMnw.cQeoNcVm98qUiF5P.P9jD5qvldn9RZylXh3pGOxh42_C79aEYT7uRdxPLyzKviZQJWmH9hSO-1sWVWu7CX6so_3ZbaIoN2pjls874josO-BZPP8MQ4ZSg2pYMiMsAvMY9arcKGqcMYY9WeasP05li3zaWjb-UopgEVMZlU2e2fh6fNvRBNxKceq2ReFb-wvdPTdE1DFrCrbYw98iyrIgwLjPqtDf15n6MCDPRNbGFHqjPUFitILrR68JzZG2Sj_rS0SJYSymBD0cIZaEKXDqHOcL9aG4Kcgi-lXNsaNs9blfdzjBAb7ZvYBVW8CNDG-nCgzTGWbx1XaUK1VhUv2jUS4DMUU4VdxEtybpOTgShwRkv8hfEcuMQj75gxyuwt50M6RRLf5mfDsK0mWJc_BWxDMME5cZdQ87pG73b-Qs8ABPiEZCEgtYY1d_U-6Y7dP6ZlQByILWpSACHtWiqFc923cutiAcr_1X9WA-N2t4gxM3IoUaftElYevqc9BaGHF_mVMxU3bzWsTGj3nmEz8ItmCQbe3pwn6NWOsX72E1HZrmRK5PYlUsQHjplibeqJ7T2Kq1FeOranHmt6BhQ6mwyqK2DyL5q8eOWhT85f-EI04C6IJ30VXNDEYtqvdkpDRlhmbvwsUqaayCLP0dBrP3zrXTOovZzKHJZKpgkGzezzDcMatmwFiajU5r4X2SKPI-wZbWC7lgNYWjph0LlN9wotZrgow0zoJk7zEzfyM0ZtlT2I9hpuuZwsper33Po5woy7qGX4DUkiV-brGrKpJVeABYKQd1xfPJxA47rk5r95PiQuctLE60fW02Q_Q.3jGzVtJM8s6wjz5MoGg9Lw%26redirect_uri%3Dhttps%3A%2F%2Freport.mimecastcybergraph.com%2Fcallback> > CGBANNERINDICATORI need to know everything about what is happening in the > PS side with the katcp server. Otherwise I cannot email the author of the > katcp package to ask questions about it. He will need to know exactly what > we are doing with CASPERized Linux. This is already going to be difficult > to communicate to him as it is. > > On Sunday, December 8, 2024 at 11:46:07 AM UTC-5 Ken Semanov wrote: > >> The Python version of the server side of KATCP is shown below. (there >> may be a C version somewhere) >> . >> https://github.com/ska-sa/katcp-python/blob/master/katcp/server.py >> <https://github.com/ska-sa/katcp-python/blob/master/katcp/server.py> >> >> This uses futures from concurrent.futures and tornado futures. As some >> may already know, "threading" in Python is fake. All threads stall all >> other threads due to a Global Interpreter Lock (GIL). This is exactly >> the behavior that I am seeing from network speed tests. One of my own >> processes can retrieve from a Snapshot at 2.1 Megabytes/sec. However, >> for 8 concurrent processes, I only see 6.1 Megabytes/sec. It is exactly >> as if the parallel connections refuse to stack up correctly. If the >> CASPERized Linux on the PS of the board side is running Python Katcp (and >> not the C version) then it would be stalling connections until the GIL >> allows them into the single thread-of-execution. >> >> Can anyone on this forum confirm any of this? What is happening on the >> CASPERized Linux image? Where could I see this for myself? What >> processes in ps aux might I see related to katcp servers on the PS side? >> >> >> >> >> On Sunday, December 8, 2024 at 12:26:26 AM UTC-5 Ken Semanov wrote: >> >>> Is there a way I could nose around the katcp server on the board side in >>> order to see how it is configured? >>> >>> Could I reconfigure this server after booting into the board? >>> >>> I am using a CASPERized image on a ZCU216. I am migrating data out of >>> snapshot blocks over network. After several network tests, it appears that >>> the katcp on the board side (PS) is artificially limited to 3 or 4 >>> simultaneous network connections over RJ45 ethernet. My use-case needs >>> this to be more like 8 to 16 connections. I may also need to change the >>> packet size. >>> >>> Thanks. >>> >> -- > You received this message because you are subscribed to the Google Groups " > casper@lists.berkeley.edu" group. > To unsubscribe from this group and stop receiving emails from it, send an > email to casper+unsubscr...@lists.berkeley.edu. > To view this discussion visit > https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/386ccab3-d2a3-4507-9542-1b4889b473f3n%40lists.berkeley.edu > <https://groups.google.com/a/lists.berkeley.edu/d/msgid/casper/386ccab3-d2a3-4507-9542-1b4889b473f3n%40lists.berkeley.edu?utm_medium=email&utm_source=footer> > . > -- The use of google poses numerous <https://jwz.org/xscreensaver/google.html> grave privacy risks Disclaimer The information contained in this communication from the sender is confidential. It is intended solely for use by the recipient and others authorized to receive it. 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