From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: X-Cyrus-Session-Id: sloti22d1t05-422771-1518026232-2-1803952698647309106 X-Sieve: CMU Sieve 3.0 X-Spam-known-sender: no ("Email failed DMARC policy for domain") X-Spam-score: 0.0 X-Spam-hits: BAYES_00 -1.9, HEADER_FROM_DIFFERENT_DOMAINS 0.001, RCVD_IN_DNSWL_MED -2.3, SPF_PASS -0.001, LANGUAGES enro, BAYES_USED global, SA_VERSION 3.4.0 X-Spam-source: IP='140.211.166.136', Host='smtp3.osuosl.org', Country='US', FromHeader='com', MailFrom='org' X-Spam-charsets: plain='us-ascii' X-IgnoreVacation: yes ("Email failed DMARC policy for domain") X-Resolved-to: greg@kroah.com X-Delivered-to: greg@kroah.com X-Mail-from: driverdev-devel-bounces@linuxdriverproject.org ARC-Seal: i=1; a=rsa-sha256; cv=none; d=messagingengine.com; s=arctest; t=1518026232; b=Z0f9FUjoegYjaE2tQckBzHRCVQN21PDlYs9NfyUa/K1ve8Z sx03hH+PIBzIcnVLO7s6bcCtMLyTwvp3acYFFB5osF619pss6oJYmDyHwjJX7kxg f6qRnAcAFbrF0dRxe6lus/4YS7YpY7G4aev8LDma5bZbkULUECF86RLjn8qhaG6c zV906M0cSa7UjSnp1PzIZMZCWdSSo2EExT7e9qA1nT1Ui7ac0fklIy4mVUvSgYaO C7A42UhVGkGjCZwnicEaGxocT9NYnHkdBwYctfT2KFHXEAcziM2pyhrez9k/DhuU x/iVKZOMrO4rXXPVkUPCT2Hd7PCP5bPbe+xSX4A== ARC-Message-Signature: i=1; a=rsa-sha256; c=relaxed/relaxed; d= messagingengine.com; h=from:to:subject:date:message-id :in-reply-to:references:list-id:list-unsubscribe:list-archive :list-post:list-help:list-subscribe:cc:mime-version:content-type :content-transfer-encoding:sender; s=arctest; t=1518026232; bh=0 LETxCKjQATvTPyLthUS72aAQHLLmFuCFQglSHe4838=; b=A2nofBd0T25IijpjB b4dBbOl4iaeqG/LtioVit3yAKFJ+agTmfk8F+szxdsXxFXS6iCZEhJ3D61D2ubBU 83LQ54LwLK5T4Cm9EmjBgLr/TQvT/KogaA0s0h/nDKIOkIAhYHeh5f7NXe2PNLxV assjeiGnREhXGUJErclGfn+qxxFdzbB6mSIjy2huigltEMint9PML7MBHtAgQ5Qb 3UUsm4N8DL6D2KBFKo2+ZAeaN3DSWkpuMIgqF7daJ+GWmH47SIGehBYs4aVMsIOb tmZfOUO9vdK3GFl8xPlsNrBgW/iM87bFpCVGBAQsKRUVTRiGNsp1NVq1Pf1ZQwn5 9+7IQ== ARC-Authentication-Results: i=1; mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=140.211.166.136 (smtp3.osuosl.org); spf=pass smtp.mailfrom=driverdev-devel-bounces@linuxdriverproject.org smtp.helo=silver.osuosl.org; x-aligned-from=fail; x-ptr=fail x-ptr-helo=silver.osuosl.org x-ptr-lookup=smtp3.osuosl.org; x-return-mx=pass smtp.domain=linuxdriverproject.org smtp.result=pass smtp_is_org_domain=yes header.domain=redhat.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 Authentication-Results: mx5.messagingengine.com; arc=none (no signatures found); dkim=none (no signatures found); dmarc=fail (p=none,has-list-id=yes,d=none) header.from=redhat.com; iprev=pass policy.iprev=140.211.166.136 (smtp3.osuosl.org); spf=pass smtp.mailfrom=driverdev-devel-bounces@linuxdriverproject.org smtp.helo=silver.osuosl.org; x-aligned-from=fail; x-ptr=fail x-ptr-helo=silver.osuosl.org x-ptr-lookup=smtp3.osuosl.org; x-return-mx=pass smtp.domain=linuxdriverproject.org smtp.result=pass smtp_is_org_domain=yes header.domain=redhat.com header.result=pass header_is_org_domain=yes; x-tls=pass version=TLSv1.2 cipher=ECDHE-RSA-AES128-GCM-SHA256 bits=128/128 X-Remote-Delivered-To: driverdev-devel@osuosl.org From: Vitaly Kuznetsov To: devel@linuxdriverproject.org Subject: [PATCH RESEND 4/4] hv_balloon: trace post_status Date: Wed, 7 Feb 2018 18:50:03 +0100 Message-Id: <20180207175003.28859-5-vkuznets@redhat.com> In-Reply-To: <20180207175003.28859-1-vkuznets@redhat.com> References: <20180207175003.28859-1-vkuznets@redhat.com> X-BeenThere: driverdev-devel@linuxdriverproject.org X-Mailman-Version: 2.1.24 List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Cc: Eduardo Otubo , Stephen Hemminger , Haiyang Zhang , Alex Ng , linux-kernel@vger.kernel.org MIME-Version: 1.0 Content-Type: text/plain; charset="us-ascii" Content-Transfer-Encoding: 7bit Errors-To: driverdev-devel-bounces@linuxdriverproject.org Sender: "devel" X-getmail-retrieved-from-mailbox: INBOX X-Mailing-List: linux-kernel@vger.kernel.org List-ID: Hyper-V balloon driver makes non-trivial calculations to convert Linux's representation of free/used memory to what Hyper-V host expects to see. Add a tracepoint to see what's being sent and where the data comes from. Signed-off-by: Vitaly Kuznetsov --- drivers/hv/Makefile | 1 + drivers/hv/hv_balloon.c | 6 ++++++ drivers/hv/hv_trace_balloon.h | 48 +++++++++++++++++++++++++++++++++++++++++++ 3 files changed, 55 insertions(+) create mode 100644 drivers/hv/hv_trace_balloon.h diff --git a/drivers/hv/Makefile b/drivers/hv/Makefile index 14c22786b519..a1eec7177c2d 100644 --- a/drivers/hv/Makefile +++ b/drivers/hv/Makefile @@ -4,6 +4,7 @@ obj-$(CONFIG_HYPERV_UTILS) += hv_utils.o obj-$(CONFIG_HYPERV_BALLOON) += hv_balloon.o CFLAGS_hv_trace.o = -I$(src) +CFLAGS_hv_balloon.o = -I$(src) hv_vmbus-y := vmbus_drv.o \ hv.o connection.o channel.o \ diff --git a/drivers/hv/hv_balloon.c b/drivers/hv/hv_balloon.c index 7514a32d0de4..b3e9f13f8bc3 100644 --- a/drivers/hv/hv_balloon.c +++ b/drivers/hv/hv_balloon.c @@ -34,6 +34,9 @@ #include +#define CREATE_TRACE_POINTS +#include "hv_trace_balloon.h" + /* * We begin with definitions supporting the Dynamic Memory protocol * with the host. @@ -1159,6 +1162,9 @@ static void post_status(struct hv_dynmem_device *dm) dm->num_pages_added - dm->num_pages_onlined : 0) + compute_balloon_floor(); + trace_balloon_status(status.num_avail, status.num_committed, + vm_memory_committed(), dm->num_pages_ballooned, + dm->num_pages_added, dm->num_pages_onlined); /* * If our transaction ID is no longer current, just don't * send the status. This can happen if we were interrupted diff --git a/drivers/hv/hv_trace_balloon.h b/drivers/hv/hv_trace_balloon.h new file mode 100644 index 000000000000..93082888aec3 --- /dev/null +++ b/drivers/hv/hv_trace_balloon.h @@ -0,0 +1,48 @@ +#undef TRACE_SYSTEM +#define TRACE_SYSTEM hyperv + +#if !defined(_HV_TRACE_BALLOON_H) || defined(TRACE_HEADER_MULTI_READ) +#define _HV_TRACE_BALLOON_H + +#include + +TRACE_EVENT(balloon_status, + TP_PROTO(u64 available, u64 committed, + unsigned long vm_memory_committed, + unsigned long pages_ballooned, + unsigned long pages_added, + unsigned long pages_onlined), + TP_ARGS(available, committed, vm_memory_committed, + pages_ballooned, pages_added, pages_onlined), + TP_STRUCT__entry( + __field(u64, available) + __field(u64, committed) + __field(unsigned long, vm_memory_committed) + __field(unsigned long, pages_ballooned) + __field(unsigned long, pages_added) + __field(unsigned long, pages_onlined) + ), + TP_fast_assign( + __entry->available = available; + __entry->committed = committed; + __entry->vm_memory_committed = vm_memory_committed; + __entry->pages_ballooned = pages_ballooned; + __entry->pages_added = pages_added; + __entry->pages_onlined = pages_onlined; + ), + TP_printk("available %lld, committed %lld; vm_memory_committed %ld;" + " pages_ballooned %ld, pages_added %ld, pages_onlined %ld", + __entry->available, __entry->committed, + __entry->vm_memory_committed, __entry->pages_ballooned, + __entry->pages_added, __entry->pages_onlined + ) + ); + +#undef TRACE_INCLUDE_PATH +#define TRACE_INCLUDE_PATH . +#undef TRACE_INCLUDE_FILE +#define TRACE_INCLUDE_FILE hv_trace_balloon +#endif /* _HV_TRACE_BALLOON_H */ + +/* This part must be outside protection */ +#include -- 2.14.3 _______________________________________________ devel mailing list devel@linuxdriverproject.org http://driverdev.linuxdriverproject.org/mailman/listinfo/driverdev-devel