This PR changes metrics collection to actually measure the time interval between collections, rather
than assume 3 seconds. I did some ad hoc profiling, and on slower hardware (eg, my Raspberry Pi 4)
I routinely saw intervals between 3.3 - 3.5 seconds, with some being as high as 4.5 seconds. This
will generally cause the CPU gauge readings to be too high, and in some cases can cause impossibly
large values for the CPU load metrics (eg. greater than 400 for a 4 core CPU).
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Co-authored-by: Felix Lange <fjl@twurst.com>
* remove uneeded convertion type
* remove redundant type in composite literal
* omit explicit type where implicit
* remove unused redundant parenthesis
* remove redundant import alias duktape
* dashboard: footer, deep state update
* dashboard: resolve asset path
* dashboard: prevent state update on every reconnection
* dashboard: fix linter issue
* dashboard, cmd: minor UI fix, include commit hash
* dashboard: gitCommit renamed to commit
* dashboard: move the geth version to the right, make commit optional
* dashboard: memory, traffic and CPU on footer
* dashboard: fix merge
* dashboard: CPU, diskIO on footer
* dashboard: rename variables, use group declaration
* dashboard: docs
On Windows, UDPConn.ReadFrom returns an error for packets larger
than the receive buffer. The error is not marked temporary, causing
our loop to exit when the first oversized packet arrived. The fix
is to treat this particular error as temporary.
Fixes: #1579, #2087
Updates: #2082