netdev - Re: [PATCH net-next v2 2/2] selftests: fib_tests: Add a test case for IPv6 garbage collection

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Message-ID: <0b992d26-f22d-7310-308a-339300628690@kernel.org>
Date: Fri, 21 Jul 2023 14:01:04 -0600
From: David Ahern <dsahern@...nel.org>
To: Kui-Feng Lee <sinquersw@...il.com>, Paolo Abeni <pabeni@...hat.com>,
 Kui-Feng Lee <thinker.li@...il.com>, davem@...emloft.net,
 edumazet@...gle.com, kuba@...nel.org, netdev@...r.kernel.org,
 martin.lau@...ux.dev, kernel-team@...a.com, yhs@...a.com
Cc: Kui-Feng Lee <kuifeng@...a.com>
Subject: Re: [PATCH net-next v2 2/2] selftests: fib_tests: Add a test case for
 IPv6 garbage collection

On 7/21/23 12:31 PM, Kui-Feng Lee wrote:
>>
>> sysctl -wq net.ipv6.route.flush=1
>>
>> # add routes
>> #...
>>
>> # delete expired routes synchronously
>> sysctl -wq net.ipv6.route.flush=1
>>
>> Note that the net.ipv6.route.flush handler uses the 'old' flush value.
> 
> May I use bpftrace to measure time spending on writing to procfs?
> It is in the order of microseconds. time command doesn't work.
> 

Both before this patch and after this patch are in microseconds?