Date: Sun, 3 Jan 2021 21:25:06 +0000 From: Andy McClements <ajm@ip-ether.net> To: freebsd-arm@freebsd.org Subject: Re: RPi4b 13.0-Current, big performance hit with HDMI connected Message-ID: <b0b82789-fe90-bf4a-1a5c-5122498c63e6@ip-ether.net> In-Reply-To: <654ae9bb-012a-ccfe-3656-7bb100bca6a0@ip-ether.net> References: <654ae9bb-012a-ccfe-3656-7bb100bca6a0@ip-ether.net>
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On 03/01/2021 18:58, Andy McClements wrote: > This may not be news to folks around here but it suprised me. > > I was just doing some very quick performance checks having got my RPi4b > to boot from SSD. I wanted to verify CPU frequency scaling was working > so did a quick net and disk throughput check. APOLOGIES - AGAIN ! The discrepancy I saw, was due to the kernel cpufreq module being loaded, but powerd not enabled, by default, in this build. I had done a 'powerd -v' in a shell in one case, but not the other, so one set of results were at 600MHz, the other at 1500MHz. Doh !
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