On Thu, Aug 21, 2025 at 01:38:44PM +0200, Kurt Kanzenbach wrote: > On Wed Aug 20 2025, Jacob Keller wrote: > > On 8/20/2025 12:56 AM, Miroslav Lichvar wrote: > >> But when I increase the rate to 200000, I get this: > >> > >> Without the patch: > >> NTP daemon TX timestamps : 35835 > >> NTP kernel TX timestamps : 1410956 > >> NTP hardware TX timestamps : 581575 > >> > >> With the patch: > >> NTP daemon TX timestamps : 476908 > >> NTP kernel TX timestamps : 646146 > >> NTP hardware TX timestamps : 412095
> Miroslav, can you test the following patch? Does this help? It seems better than with the original patch, but not as good as before, at least in the tests I'm doing. The maximum packet rate the server can handle is now only about 5% worse (instead of 40%), but the the number of missing timestamps on the server still seems high. With the new patch at 200000 requests per second: NTP daemon TX timestamps : 192404 NTP kernel TX timestamps : 1318971 NTP hardware TX timestamps : 418805 I didn't try to adjust the aux worker priority. -- Miroslav Lichvar
