Date: Mon, 1 Jun 2009 08:32:24 +0000 (UTC) From: Robert Watson <rwatson@FreeBSD.org> To: src-committers@freebsd.org, svn-src-projects@freebsd.org Subject: svn commit: r193209 - projects/pnet/sys/net Message-ID: <200906010832.n518WOG4069900@svn.freebsd.org>
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Author: rwatson Date: Mon Jun 1 08:32:24 2009 New Revision: 193209 URL: http://svn.freebsd.org/changeset/base/193209 Log: Count wakeups sent and wakeups processed for netisr workstreams. Modified: projects/pnet/sys/net/netisr.c Modified: projects/pnet/sys/net/netisr.c ============================================================================== --- projects/pnet/sys/net/netisr.c Mon Jun 1 08:17:00 2009 (r193208) +++ projects/pnet/sys/net/netisr.c Mon Jun 1 08:32:24 2009 (r193209) @@ -248,6 +248,8 @@ struct netisr_workstream { u_int nws_cpu; /* CPU pinning. */ u_int nws_flags; /* Wakeup flags. */ u_int nws_pendingbits; /* Scheduled protocols. */ + u_int64_t nws_wakeupssent; /* How many times scheduled. */ + u_int64_t nws_wakeups; /* How many times woken up. */ /* * Each protocol has per-workstream data. @@ -290,7 +292,11 @@ SYSCTL_INT(_net_isr, OID_AUTO, numthread #define NWS_LOCK(s) mtx_lock(&(s)->nws_mtx) #define NWS_LOCK_ASSERT(s) mtx_assert(&(s)->nws_mtx, MA_OWNED) #define NWS_UNLOCK(s) mtx_unlock(&(s)->nws_mtx) -#define NWS_SIGNAL(s) swi_sched((s)->nws_swi_cookie, 0) +#define NWS_SIGNAL(s) do { \ + (s)->nws_wakeupssent++; \ + swi_sched((s)->nws_swi_cookie, 0); \ +} while (0) + /* * Utility routines for protocols that implement their own mapping of flows @@ -732,6 +738,7 @@ swi_net(void *arg) NETISR_RLOCK(&tracker); #endif NWS_LOCK(nwsp); + nwsp->nws_wakeups++; KASSERT(!(nwsp->nws_flags & NWS_RUNNING), ("swi_net: running")); if (nwsp->nws_flags & NWS_DISPATCHING) goto out;
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