Date: Fri, 20 Apr 2018 21:15:50 +0200 From: Niels Kobschaetzki <niels@kobschaetzki.net> To: Rainer Duffner <rainer@ultra-secure.de> Cc: Rick Macklem <rmacklem@uoguelph.ca>, "freebsd-net@freebsd.org" <freebsd-net@freebsd.org> Subject: Re: High rate of NFS cache misses after upgrading from 10.3-prerelease to 11.1-release Message-ID: <16C35EAA-B3FA-4126-A7AD-2711555C1D28@kobschaetzki.net> In-Reply-To: <4B3B8AD9-F923-490F-B2B6-09F4517E8D28@ultra-secure.de> References: <ce3712c0-626e-c8f2-3bba-933cf359bcef@kobschaetzki.net> <YQBPR0101MB1042D2F0CE2575EB4F17588ADDB20@YQBPR0101MB1042.CANPRD01.PROD.OUTLOOK.COM> <a2c63a00-d672-e626-127b-ba0a350371e1@kobschaetzki.net> <YQBPR0101MB10425CBA8FD04706D0CB9369DDB00@YQBPR0101MB1042.CANPRD01.PROD.OUTLOOK.COM> <a64200ed-b3fd-aa45-75ad-97c25a5a123d@kobschaetzki.net> <4B3B8AD9-F923-490F-B2B6-09F4517E8D28@ultra-secure.de>
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> On 19. Apr 2018, at 00:07, Rainer Duffner <rainer@ultra-secure.de> wrote: >=20 >=20 >=20 >> Am 17.04.2018 um 06:45 schrieb Niels Kobsch=C3=A4tzki <niels@kobschaetzki= .net>: >>=20 >> solved now finally my problem after two weeks and it wasn't the NFS. I >> just got derailed from the real solution again and again from some >> people, thus I didn't look in the right place. The cache misses are gone >> now, the application performs now faster than on the other servers. >=20 >=20 >=20 > OK, but what was it? Miscommunication and a missing php71-opcache. Apparently php is doing then a= lot of syscalls which lead to getattr-call which cannot be handled by the n= fs cache. A problem for a lot of years now and it won=E2=80=99t be dealt wit= h. Niels P.s. the application is now nearly twice as fast but needs half the RAM and p= roduces half the load than on FBSD 10.3/php56=
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