From a4cbcebe31bb6ed3c502650cf3543b98d1fdb960 Mon Sep 17 00:00:00 2001 From: Jim Klimov Date: Thu, 4 Jul 2024 21:04:44 +0200 Subject: [PATCH] docs/man/nut-scanner.txt: document that currently different IP range scans do not parallelize together [#2244] Signed-off-by: Jim Klimov --- docs/man/nut-scanner.txt | 6 ++++++ 1 file changed, 6 insertions(+) diff --git a/docs/man/nut-scanner.txt b/docs/man/nut-scanner.txt index 6df5099b7b..d326219970 100644 --- a/docs/man/nut-scanner.txt +++ b/docs/man/nut-scanner.txt @@ -122,6 +122,12 @@ range, turning those two into single-IP queries. Also note that some buses require IP address(es) to scan, and others have a different behavior when exactly no addresses are specified (it is not currently possible to mix the two behaviors in one invocation of the `nut-scanner` tool). ++ +Finally note that currently even if multi-threaded support is available, each +range specification is a separate fan-out of queries constrained by the timeout. +Requests to scan many single IP addresses will take a while to complete, much +longer than if they were a single range. This will be hopefully fixed in later +releases. *-t* | *--timeout* 'timeout':: Set the network timeout in seconds. Default timeout is 5 seconds.