Patents Assigned to DRW Technologies LLC
  • Patent number: 11290389
    Abstract: A system and method are provided for a bandwidth manager for packetized data designed to arbitrate access between multiple, high bandwidth, ingress channels (sources) to one, lower bandwidth, egress channel (sink). The system calculates which source to grant access to the sink on a word-to-word basis and intentionally corrupts/cuts packets if a source ever loses priority while sending. Each source is associated with a ranking that is recalculated every data word. When a source buffer sends enough words to have its absolute rank value increase above that of another source buffer waiting to send, the system “cuts” the current packet by forcing the sending buffer to stop mid-packet and selects a new, lower ranked, source buffer to send. When there are multiple requesting source buffers with the same rank, the system employs a weighted priority randomized scheduler for buffer selection.
    Type: Grant
    Filed: December 2, 2020
    Date of Patent: March 29, 2022
    Assignee: DRW Technologies LLC
    Inventors: Samuel Philippe Mas, Jie Yu, Philip Wolfsberger, Vincent Trudel-Lapierre, Patrick Grogan, Francois-Dominique Richardson, Jun Wu
  • Patent number: 8903994
    Abstract: In accordance with the principles of the present invention, read throttled input/output scheduler applications and methods are provided. A read-throttling input/output scheduler takes write requests for data captured from a network, provides this data to a system that persists the captured data, and takes read requests from external user systems. The rate of read and write requests is determined by maintaining two sliding windows over previous write requests, with the second window being longer then the first. The read-throttling input/output scheduler is configured such that, when write requests activity exceeds a threshold as determined over the first window, the read-throttling input/output scheduler throttles the flow of read requests. A storage medium is provided onto which the read and write requests are forwarded. This Abstract is submitted with the understanding that it will not be used to interpret or limit the scope or meaning of the claims.
    Type: Grant
    Filed: March 20, 2012
    Date of Patent: December 2, 2014
    Assignee: DRW Technologies LLC
    Inventors: Alexander Kramnik, Nicolaus P. Matnick, William Lyle Hayhurst