2.4.5 New Install Slow to boot on Hyper-V 2019

Com DAC

I've got 2 cores assigned to each pfSense VM. The Server 2019 instance has 1GB ram and the Windows 10 instance has 512MB ram.

I'm also using the classic scheduler on Server 2019 as I trust all the VM's I'm running and I got better performance from pfSense using that scheduler.
https://docs.microsoft.com/en-us/windows-server/virtualization/hyper-v/manage/manage-hyper-v-scheduler-types

I'm wondering if this is a scheduler issue as Server 2019 does default to a different scheduler than previous server versions and Windows 10 uses the root scheduler which is quite different than the server defaults.

XBH

@Com-DAC Possible, I've just tried 2.4.5 on 2019 with Classic scheduler. Seems to be better. I'll test more next week.

Mats

i just did a fresh install on hyper-v server 2019. (I5 2405s 32 gb ram and an ssd
Standard install with ufs

takes 30-35s to mount filesystems

IsaacFL

@Mats said in 2.4.5 New Install Slow to boot on Hyper-V 2019:

i just did a fresh install on hyper-v server 2019. (I5 2405s 32 gb ram and an ssd
Standard install with ufs

takes 30-35s to mount filesystems

that was about the time I was seeing.

Com DAC

I just did another test and had two browser windows open. In one window I was watching the Diganostics / System Activity page and in the other window I just went to System / General Setup changed nothing and clicked save. In system activity I saw this:

  PID USERNAME   PRI NICE   SIZE    RES STATE   C   TIME    WCPU COMMAND
31257 root        90    0  8828K  4832K CPU1    1   0:10  63.96% /sbin/pfctl -o basic -f /tmp/rules.debug
98023 root        52    0 10288K  5724K select  1   0:09  58.98% /usr/local/sbin/ntpd -g -c /var/etc/ntpd.conf -p /var/run/ntpd.pid

During this time my pings went way up until the save completed (at least no packet loss happened). It only lasted about 4 seconds but I don't recall this happening when making changes in 2.4.4.

cuco

@Com-DAC Your problem sounds like this issue: #10414

Workaround: #901871

IsaacFL

I did a test VM install of just vanilla FreeBSD 11.3 with the same parameters as my pfsense install, and the FreeBSD VMdoes not seem to have any of the issues at boot that the pfsense has.

So not sure what to do after this?

mor

1 core work-around in https://forum.netgate.com/topic/149595/2-4-5-a-20200110-1421-and-earlier-high-cpu-usage-from-pfctl/17# resolved here;
On-top of slow very slow boot, I also found dropping back to 1 CPU also resolved an issue of system dropping offline post any change of network settings or FW rules.

XBH

HyperV scheduler change does seem to help much. It behaves inconsistently. I have 2 VMs on 2 hosts both changed to Classic scheduler. One is fine. Second one has the issue.

carl2187

I see this issue too (lockups, no network for long duration's randomly, overall slowness) on my server 2016 datacenter hyper-v pfsense vms, ~~but not on my windows 10 1909 x64 hyper-v pfsense vms with 2.4.5.~~

doing more tests, reloading the firewall filter does cause the issue on windows 10 1909 hyper-v as well. vm config: gen 2, zfs, 6GB ram, 4x cpu cores assigned.

gonna try the same vm in virtual box and see if the issue exists there too. at this point i've seen the issue on 2016 server hyper-v and windows 10 1909.