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Date:      Tue, 19 Jan 2021 12:44:14 +0000
From:      Santiago Martinez <sm@codenetworks.net>
To:        FreeBSD Current <current@freebsd.org>
Subject:   VM UMA counters.
Message-ID:  <0996195a-6d7f-b058-e95c-b2446688940f@codenetworks.net>

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From: Santiago Martinez <sm@codenetworks.net>
To: FreeBSD Current <current@freebsd.org>
Message-ID: <0996195a-6d7f-b058-e95c-b2446688940f@codenetworks.net>
Subject: VM UMA counters.

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Hi there, sorry to ask this as it might be a silly question...

Since a few weeks im seeing random locks on application and sometimes
when using truss it show resource temporally unavailable.

Now, checking random things, i see that the
vm.uma.256_Bucket.stats.fails counter is increasing while the other are
not (at least for now).

Here goes the output:

vm.uma.256_Bucket.stats.xdomain: 0
vm.uma.256_Bucket.stats.fails: 762142
vm.uma.256_Bucket.stats.frees: 41935
vm.uma.256_Bucket.stats.allocs: 42721
vm.uma.256_Bucket.stats.current: 786

root@tucho:/home/smartinez # uname -a
FreeBSD tucho 13.0-ALPHA1 FreeBSD 13.0-ALPHA1 #13
main-c256107-g7d3310c4fcdd: Tue Jan 19 10:50:12 GMT 2021=C2=A0=C2=A0=C2=A0=
=C2=A0
smartinez@tucho:/usr/obj/usr/src/amd64.amd64/sys/GENERIC-NODEBUG=C2=A0 am=
d64

My question is, is this the expected behavior?

Regards.

Santi



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