From: "Morten Brørup" <mb@smartsharesystems.com>
To: "Ferruh Yigit" <ferruh.yigit@amd.com>,
"Thomas Monjalon" <thomas@monjalon.net>,
"Andrew Rybchenko" <andrew.rybchenko@oktetlabs.ru>
Cc: dev@dpdk.org, stable@dpdk.org,
"Mattias Rönnblom" <mattias.ronnblom@ericsson.com>,
"Stephen Hemminger" <stephen@networkplumber.org>
Subject: RE: [PATCH] ethdev: document that stats reset APIs are not thread-safe
Date: Fri, 26 Apr 2024 14:20:01 +0200 [thread overview]
Message-ID: <98CBD80474FA8B44BF855DF32C47DC35E9F3F7@smartserver.smartshare.dk> (raw)
In-Reply-To: <20240425165308.1078454-1-ferruh.yigit@amd.com>
> From: Ferruh Yigit [mailto:ferruh.yigit@amd.com]
> Sent: Thursday, 25 April 2024 18.53
>
> Making 'rte_eth_stats_reset()' and 'rte_eth_xstats_reset()' APIs thread
> safe has performance impact on datapath.
>
> Instead document APIs as not thread safe and add condition for reliable
> stats reset functionality, forwarding should be stopped.
I'm not sure stopping forwarding suffices.
NIC hardware counters will keep progressing unless RX and TX is stopped at NIC level.
I don't have any suggestions for a better wording, though. :-(
Anyway, better with the patch than without...
Acked-by: Morten Brørup <mb@smartsharesystems.com>
next prev parent reply other threads:[~2024-04-26 12:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2024-04-25 16:53 [PATCH] ethdev: document that stats reset APIs are not thread-safe Ferruh Yigit
2024-04-26 12:20 ` Morten Brørup [this message]
2024-04-26 15:13 ` Stephen Hemminger
2024-04-26 15:17 ` Morten Brørup
2024-04-26 22:57 ` Stephen Hemminger
2024-04-28 15:52 ` Mattias Rönnblom
2024-04-29 6:20 ` Morten Brørup
2024-04-29 15:33 ` Stephen Hemminger
2024-04-28 15:48 ` Mattias Rönnblom
2024-04-29 7:57 ` Morten Brørup
2024-04-29 9:30 ` Mattias Rönnblom
2024-04-26 21:33 ` Patrick Robb
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