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8003209: JFR events for network utilization

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Reviewed-by: mgronlun, egahlin
This commit is contained in:
Robin Westberg 2018-06-28 15:06:55 +02:00
parent 724ba7feb2
commit b11c7752e8
19 changed files with 1350 additions and 10 deletions
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86
src/hotspot/os/bsd/os_perf_bsd.cpp
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@ -34,6 +34,10 @@
#include <sys/sysctl.h>
#include <mach/mach.h>
#include <mach/task_info.h>
#include <sys/socket.h>
#include <net/if.h>
#include <net/if_dl.h>
#include <net/route.h>
#endif
static const double NANOS_PER_SEC = 1000000000.0;
@ -403,3 +407,85 @@ int CPUInformationInterface::cpu_information(CPUInformation& cpu_info) {
cpu_info = *_cpu_info; // shallow copy assignment
return OS_OK;
}
class NetworkPerformanceInterface::NetworkPerformance : public CHeapObj<mtInternal> {
friend class NetworkPerformanceInterface;
private:
NetworkPerformance();
NetworkPerformance(const NetworkPerformance& rhs); // no impl
NetworkPerformance& operator=(const NetworkPerformance& rhs); // no impl
bool initialize();
~NetworkPerformance();
int network_utilization(NetworkInterface** network_interfaces) const;
};
NetworkPerformanceInterface::NetworkPerformance::NetworkPerformance() {
}
bool NetworkPerformanceInterface::NetworkPerformance::initialize() {
return true;
}
NetworkPerformanceInterface::NetworkPerformance::~NetworkPerformance() {
}
int NetworkPerformanceInterface::NetworkPerformance::network_utilization(NetworkInterface** network_interfaces) const {
size_t len;
int mib[] = {CTL_NET, PF_ROUTE, /* protocol number */ 0, /* address family */ 0, NET_RT_IFLIST2, /* NET_RT_FLAGS mask*/ 0};
if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), NULL, &len, NULL, 0) != 0) {
return OS_ERR;
}
uint8_t* buf = NEW_RESOURCE_ARRAY(uint8_t, len);
if (sysctl(mib, sizeof(mib) / sizeof(mib[0]), buf, &len, NULL, 0) != 0) {
return OS_ERR;
}
size_t index = 0;
NetworkInterface* ret = NULL;
while (index < len) {
if_msghdr* msghdr = reinterpret_cast<if_msghdr*>(buf + index);
index += msghdr->ifm_msglen;
if (msghdr->ifm_type != RTM_IFINFO2) {
continue;
}
if_msghdr2* msghdr2 = reinterpret_cast<if_msghdr2*>(msghdr);
sockaddr_dl* sockaddr = reinterpret_cast<sockaddr_dl*>(msghdr2 + 1);
// The interface name is not necessarily NUL-terminated
char name_buf[128];
size_t name_len = MIN2(sizeof(name_buf) - 1, static_cast<size_t>(sockaddr->sdl_nlen));
strncpy(name_buf, sockaddr->sdl_data, name_len);
name_buf[name_len] = '\0';
uint64_t bytes_in = msghdr2->ifm_data.ifi_ibytes;
uint64_t bytes_out = msghdr2->ifm_data.ifi_obytes;
NetworkInterface* cur = new NetworkInterface(name_buf, bytes_in, bytes_out, ret);
ret = cur;
}
*network_interfaces = ret;
return OS_OK;
}
NetworkPerformanceInterface::NetworkPerformanceInterface() {
_impl = NULL;
}
NetworkPerformanceInterface::~NetworkPerformanceInterface() {
if (_impl != NULL) {
delete _impl;
}
}
bool NetworkPerformanceInterface::initialize() {
_impl = new NetworkPerformanceInterface::NetworkPerformance();
return _impl != NULL && _impl->initialize();
}
int NetworkPerformanceInterface::network_utilization(NetworkInterface** network_interfaces) const {
return _impl->network_utilization(network_interfaces);
}