markj e9b44e8630 netdump: Buffer pages to avoid calling netdump_send() on each 4KB write. ... netdump waits for acknowledgement from the server for each write. When dumping page table pages, we perform many small writes, limiting throughput. Use the netdump client's buffer to buffer small contiguous writes before calling netdump_send() to flush the MAXDUMPPGS-sized buffer. This results in a significant reduction in the time taken to complete a netdump. Submitted by: Sam Gwydir <sam@samgwydir.com> Reviewed by: cem MFC after: 2 weeks Differential Revision: https://reviews.freebsd.org/D20317		2019-05-31 18:29:12 +00:00
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netdump_client.c	netdump: Buffer pages to avoid calling netdump_send() on each 4KB write.	2019-05-31 18:29:12 +00:00
netdump.h	List-ify kernel dump device configuration	2019-05-06 18:24:07 +00:00