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Kernel+SystemMonitor: Log amounts of I/O per thread
This patch adds these I/O counters to each thread: - (Inode) file read bytes - (Inode) file write bytes - Unix socket read bytes - Unix socket write bytes - IPv4 socket read bytes - IPv4 socket write bytes These are then exposed in /proc/all and seen in SystemMonitor.
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parent
a18aa8fd5f
commit
5a45376180
10 changed files with 171 additions and 17 deletions
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@ -222,15 +222,13 @@ ssize_t LocalSocket::sendto(FileDescription& description, const void* data, size
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{
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if (!has_attached_peer(description))
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return -EPIPE;
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auto role = this->role(description);
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if (role == Role::Accepted)
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return m_for_client.write((const u8*)data, data_size);
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if (role == Role::Connected)
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return m_for_server.write((const u8*)data, data_size);
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ASSERT_NOT_REACHED();
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ssize_t nwritten = send_buffer_for(description).write((const u8*)data, data_size);
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if (nwritten > 0)
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current->did_unix_socket_write(nwritten);
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return nwritten;
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}
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DoubleBuffer& LocalSocket::buffer_for(FileDescription& description)
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DoubleBuffer& LocalSocket::receive_buffer_for(FileDescription& description)
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{
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auto role = this->role(description);
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if (role == Role::Accepted)
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@ -240,9 +238,19 @@ DoubleBuffer& LocalSocket::buffer_for(FileDescription& description)
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ASSERT_NOT_REACHED();
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}
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DoubleBuffer& LocalSocket::send_buffer_for(FileDescription& description)
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{
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auto role = this->role(description);
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if (role == Role::Connected)
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return m_for_server;
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if (role == Role::Accepted)
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return m_for_client;
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ASSERT_NOT_REACHED();
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}
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ssize_t LocalSocket::recvfrom(FileDescription& description, void* buffer, size_t buffer_size, int, sockaddr*, socklen_t*)
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{
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auto& buffer_for_me = buffer_for(description);
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auto& buffer_for_me = receive_buffer_for(description);
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if (!description.is_blocking()) {
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if (buffer_for_me.is_empty()) {
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if (!has_attached_peer(description))
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@ -257,7 +265,10 @@ ssize_t LocalSocket::recvfrom(FileDescription& description, void* buffer, size_t
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if (!has_attached_peer(description) && buffer_for_me.is_empty())
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return 0;
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ASSERT(!buffer_for_me.is_empty());
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return buffer_for_me.read((u8*)buffer, buffer_size);
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int nread = buffer_for_me.read((u8*)buffer, buffer_size);
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if (nread > 0)
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current->did_unix_socket_read(nread);
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return nread;
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}
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StringView LocalSocket::socket_path() const
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