| To: | ak@xxxxxxx |
|---|---|
| Subject: | Re: gettime: Was (Re: Route cache performance under stress |
| From: | "David S. Miller" <davem@xxxxxxxxxx> |
| Date: | Wed, 11 Jun 2003 20:30:15 -0700 (PDT) |
| Cc: | hadi@xxxxxxxxxxxxxxxx, greearb@xxxxxxxxxxxxxxx, netdev@xxxxxxxxxxx |
| In-reply-to: | <20030611120803.GB22720@xxxxxxxxxxxxx> |
| References: | <20030610.203325.41658167.davem@xxxxxxxxxx> <20030611065255.L39678@xxxxxxxxxxxxxxxx> <20030611120803.GB22720@xxxxxxxxxxxxx> |
| Sender: | netdev-bounce@xxxxxxxxxxx |
From: Andi Kleen <ak@xxxxxxx> Date: Wed, 11 Jun 2003 14:08:03 +0200 Another way is to just store jiffies (= 10 or 1ms accuracy) This should be nearly zero cost and accurate enough at least for TCP. TCP doesn't use it Andi. SO_RECVSTAMP etc. uses it and that MUST be accurate. People, start approaching this from an actually implementable angle, not one's that have no basis in reality :) |
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