netdev - Re: [PATCH V2 net] ibmvnic: Continue with reset if set link down failed

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Message-ID: <376383c3-3fbd-25bf-8fb3-6cd54c218e34@linux.vnet.ibm.com>
Date:   Thu, 22 Apr 2021 00:05:55 -0700
From:   Rick Lindsley <ricklind@...ux.vnet.ibm.com>
To:     Lijun Pan <lijunp213@...il.com>,
        Sukadev Bhattiprolu <sukadev@...ux.ibm.com>
Cc:     Lijun Pan <ljp@...ux.vnet.ibm.com>,
        Dany Madden <drt@...ux.ibm.com>,
        David Miller <davem@...emloft.net>,
        Jakub Kicinski <kuba@...nel.org>,
        Tom Falcon <tlfalcon@...ux.ibm.com>, netdev@...r.kernel.org,
        Paul Mackerras <paulus@...ba.org>,
        linuxppc-dev@...ts.ozlabs.org
Subject: Re: [PATCH V2 net] ibmvnic: Continue with reset if set link down
 failed

On 4/21/21 10:06 PM, Lijun Pan wrote:
> No real customer runs the system under that heavy load created by
> HTX stress test, which can tear down any working system.

So, are you saying the bugs that HTX uncovers are not worth fixing?

There's a fair number of individuals and teams out there that
utilize HTX in the absence of such a workload, and not just for vnic.
What workload would you suggest to better serve "real customers"?

> I think such optimizations are catered for passing HTX tests.

Well, yes.  If the bugs are found with HTX, the fixes are verified
against HTX.  If they were found with a "real customer workload" they'd
be verified against a "real customer workload."