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[204.195.96.226]) by smtp.gmail.com with ESMTPSA id d9443c01a7336-225c68a403fsm74737375ad.61.2025.03.17.06.36.21 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Mon, 17 Mar 2025 06:36:22 -0700 (PDT) Date: Mon, 17 Mar 2025 06:36:20 -0700 From: Stephen Hemminger To: chia-yu.chang@nokia-bell-labs.com Cc: netdev@vger.kernel.org, dave.taht@gmail.com, pabeni@redhat.com, jhs@mojatatu.com, kuba@kernel.org, xiyou.wangcong@gmail.com, jiri@resnulli.us, davem@davemloft.net, edumazet@google.com, horms@kernel.org, andrew+netdev@lunn.ch, donald.hunter@gmail.com, ast@fiberby.net, liuhangbin@gmail.com, shuah@kernel.org, linux-kselftest@vger.kernel.org, ij@kernel.org, ncardwell@google.com, koen.de_schepper@nokia-bell-labs.com, g.white@cablelabs.com, ingemar.s.johansson@ericsson.com, mirja.kuehlewind@ericsson.com, cheshire@apple.com, rs.ietf@gmx.at, Jason_Livingood@comcast.com, vidhi_goel@apple.com, Olga Albisser , Oliver Tilmans , Bob Briscoe , Henrik Steen Subject: Re: [PATCH v4 iproute2-next 1/1] tc: add dualpi2 scheduler module Message-ID: <20250317063620.30d24269@hermes.local> In-Reply-To: <20250316153917.21005-2-chia-yu.chang@nokia-bell-labs.com> References: <20250316153917.21005-1-chia-yu.chang@nokia-bell-labs.com> <20250316153917.21005-2-chia-yu.chang@nokia-bell-labs.com> Precedence: bulk X-Mailing-List: linux-kselftest@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit On Sun, 16 Mar 2025 16:39:17 +0100 chia-yu.chang@nokia-bell-labs.com wrote: > +static int dualpi2_print_xstats(struct qdisc_util *qu, FILE *f, > + struct rtattr *xstats) > +{ > + struct tc_dualpi2_xstats *st; > + > + if (xstats == NULL) > + return 0; > + > + if (RTA_PAYLOAD(xstats) < sizeof(*st)) > + return -1; > + > + st = RTA_DATA(xstats); > + fprintf(f, "prob %f delay_c %uus delay_l %uus\n", > + (double)st->prob / (double)MAX_PROB, st->delay_c, st->delay_l); > + fprintf(f, "pkts_in_c %u pkts_in_l %u maxq %u\n", > + st->packets_in_c, st->packets_in_l, st->maxq); > + fprintf(f, "ecn_mark %u step_marks %u\n", st->ecn_mark, st->step_marks); > + fprintf(f, "credit %d (%c)\n", st->credit, st->credit > 0 ? 'C' : 'L'); > + fprintf(f, "memory used %u (max %u) of memory limit %u\n", > + st->memory_used, st->max_memory_used, st->memory_limit); > + return 0; > + You should support JSON for the stats as well.