Abstract: Implementations generally relate to optimizing bar charts. In some implementations, a method includes receiving a plurality of data points, where each data point of the plurality of data points has a value. The method further includes determining a plurality of bars of the bar chart based on the plurality of data points, where each bar of the plurality of bars has a length and a width. The method further includes associating at least portions of a plurality of pixels used to render the bar chart with the plurality of bars. The method further includes determining for each pixel or pixel portion, at least one or more of a highest positive bar and/or a lowest negative bar. The method further includes rendering for individual pixels or pixel portions, one or more of the respective highest positive bar and/or the respective lowest negative bar.

Abstract: A disclosed method may include (1) detecting, at a network stack of a network device, a packet that (A) is destined at least intermediately for a network interface of the network device and (B) has been flagged by the network stack to be dropped instead of forwarded to the network interface based on at least one characteristic of the packet, (2) instead of dropping the packet, forwarding the packet to an alternative network interface of the network device that analyzes content of packets, (3) identifying, at the alternative network interface, the characteristic of the packet, and then (4) executing, based on the characteristic of the packet, at least one action in connection with the packet that improves the performance of the network device. Various other apparatuses, systems, and methods are also disclosed.

Abstract: Power systems and methods for supplying direct current power to a server rack via a power shelf assembly that includes multiple power supply units (PSUs) and a power shelf controller (PSC) that ensures a correct configuration of PSUs, backup battery units (BBUs), and connection components using a power shelf configuration record. Upon a boot cycle of the PSC, the configuration identified in the power shelf controller is compared to an actual configuration of the components being connected between a server rack and the power shelf assembly to avoid providing power too soon and causing an overload of components for the server rack.

Abstract: Implementations generally relate to using a nested pixel map to optimize chart rendering in a graphical user interface. In some implementations, a method includes generating a first pixel map for a chart, wherein the first pixel map is a first data structure that includes a first group of first data elements, wherein each first data element corresponds to a pixel of a plurality of pixels used to render the chart. The method further includes generating at least one secondary pixel map for the chart. The method further includes determining one or more obscurity states of one or more markers of the chart based on one or more of the first pixel map and the at least one secondary pixel map. The method further includes rendering one or more of the markers in the chart based on the obscurity state of each of the one or more markers.

Abstract: Implementations generally relate to optimizing bar charts. In some implementations, a method includes receiving a plurality of data points, where each data point of the plurality of data points has a value. The method further includes determining a plurality of bars of the bar chart based on the plurality of data points, where each bar of the plurality of bars has a length and a width. The method further includes associating a plurality of pixels used to render the bar chart with the plurality of bars. The method further includes determining for each pixel of the plurality of pixels at least one or more of a highest positive bar and a lowest negative bar. The method further includes rendering for each pixel one or more of the respective highest positive bar and the respective lowest negative bar.

Abstract: A cathode is provided for electrolysis of water wherein the cathode material comprises a multi-principal element, transition metal dichalcogenide material that has four or more chemical elements and that is a single phase, solid solution. The pristine cathode material does not contain platinum as a principal (major) component. However, a cathode comprising a transition metal dichalcogenide having platinum (Pt) nanosized islands or precipitates disposed thereon is also provided.

Abstract: A process and temperature variation operating condition that is globally applicable to an integrated circuit die is sensed in a core circuit region to generate a global process and temperature compensation signal. A voltage variation operating condition that is locally applicable to an input/output circuit within a peripheral circuit region of the integrated circuit die is sensed to generate a local voltage compensation signal. More specifically, the localized voltage operating condition is generated as a function of a measured difference in frequency between a first clock signal generated in the peripheral circuit region in response to a supply voltage subject to voltage variation and a second clock signal generated in the core circuit region in response to a fixed bandgap reference voltage. The operation of the input/output circuit is then altered in response to the global process and temperature compensation signal and in response to the local voltage compensation signal.

Abstract: The disclosed apparatus may include (1) a physical routing engine that comprises (A) a socket-intercept layer, stored in kernel space, that (I) intercepts a packet that is destined for a remote device and (II) queries, in response to intercepting the packet in kernel space, a routing daemon in user space for an MTU value of an egress interface that is to forward the packet from the network device to the remote device and (B) a tunnel driver, stored in kernel space, that fragments the packet into segments whose respective sizes each comply with the MTU value of the egress interface and (2) a physical packet forwarding engine that forwards the segments of the packet to the remote device by way of the egress interface. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A disclosed method for applying firewall rules on packets in kernel space on network devices may include (1) intercepting, via a socket-intercept layer in kernel space on a routing engine of a network device, a packet that is destined for a remote device and then, in response to intercepting the packet in kernel space on the routing engine, (2) identifying an egress interface index that specifies an egress interface that (A) is external to kernel space and (B) is capable of forwarding the packet from the network device to the remote device and (3) applying, on the packet in kernel space, at least one firewall rule based at least in part on the egress interface index before the packet egresses from the routing engine. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A grid-based visualization displays icons representing data entities in grid cells corresponding with the data entities' attribute values. Grid cells organize icons according to first and second attribute values of their data entities. Dynamic grouping replaces icons with summary icons based on one or more additional attributes of their data entities. Each summary icon represents one or more icons having matching values of their additional attributes. Summary icons may include sizing and visual indicators of aggregate values of the icons they replace. Summary icons may replace icons within a single cell or multiple cells. Summary icons may be positioned based on the positions of the icons they replace. User interface controls for activating and controlling grouping may be integrated with a legend.

Abstract: The disclosed apparatus may include (1) forwarding, along a network path, a test packet that is (A) destined for an invalid port on a destination device and (B) fragmented by an intermediary device within the network path according to an MTU value of a network interface on the intermediary device, (2) receiving an error packet sent by the destination device in response to having determined that the test packet is destined for the invalid port, (3) determining a PMTU value of the network path by identifying, within the error packet, a size of the largest fragmented segment of the test packet received by the destination device, and then (4) forwarding, along the network path, at least one packet sized to comply with the PMTU value such that the packet remains unfragmented upon reaching the destination device. Various other apparatuses, systems, and methods are also disclosed.

Abstract: A power supply voltage detector circuit monitors a ramping supply voltage and selectively enables a voltage divider for operation to divide the ramping supply voltage in response to the ramping supply voltage exceeding a first threshold. Additionally, a variable resistance of the voltage divider is changed in response to the ramping supply voltage exceeding a second threshold. A voltage output from the voltage divider is used to generate a bandgap voltage used as a reference voltage in comparison operations for controlling enabling of the voltage divider and selection of the variable resistance.

Abstract: Techniques are described to reduce false alarms in network devices utilizing keepalive messaging schemes. In order to potentially avoid false alarms, a transmitting network device adjusts quality of service QOS/TOS settings in keep-alive probe packets that are sent later in a current detection interval such that the keep-alive probe packets have escalating priorities. In addition, for keep-alive probe packets that are sent later in the current detection interval, the network device may also insert host-level preferential indicator within each of the packets to request preferential treatment at both itself and the peer network device.

Abstract: Disclosed herein is an low power output stage coupled between a supply node and a ground node, configured to drive an output, and controlled by first, second, and third control nodes. A current sinking circuit controlled by an input signal and configured to sink current from the first and second control nodes when the input signal transitions to a first logic level, thereby resulting in decoupling of the output stage from the ground node and sourcing of current to the output by the output stage. When the input signal transitions to a second logic level different than the first logic level, the current sinking circuit sinks current from a third control node, thereby resulting in decoupling of the output stage from the supply node and sinking of current from the output by the output stage.

Abstract: Techniques for securely destroying data stored on a portable storage device may be provided. For example, a portable storage device includes a first memory configured to store data while a current is supplied by a second device or a capacitor of the first device. One or more capacitors of the portable device may be configured to store a charge to provide the current to the first memory. A processor that is configured to access computer-executable instructions of a second memory of the first device may provide instructions to enable transfer of the data stored in the first memory to the second device. In particular embodiments, the data stored in the first memory may be erased in response to the current no longer being provided by the second device or the one or more capacitors.

Abstract: Various embodiments enable a web site to expose various search providers that it promotes to browsers that navigate to that site. In at least some embodiments, the search providers are exposed using the HTML of a web page. When a browser navigates to that site, it processes the HTML of the associated web page and exposes the promoted search providers to the user. In at least some embodiments, the browser can permit use of one or more search providers without requiring the user to install the search provider. Alternately or additionally, in at least some other embodiments, the browser can enable the user to quickly and efficiently install the search provider so that the search provider can be available whenever the user uses their browser application.

Abstract: A method includes determining a user origination point and a destination point using a message received from a client device associated with a user, the message being transmitted over an Short Message Service (SMS) protocol. The method further includes determining a route between the user origination point and the destination point, the route comprising a plurality of instructions to direct the user from the user origination point to a checkpoint along the route. The method further includes formatting the plurality of instructions for display in an SMS messaging application on the client device. The method further includes transmitting the formatted plurality of instructions over the SMS protocol to the client device.

Abstract: A circuit has a first window comparator determining whether a signal at a first input has a voltage higher than a first threshold but lower than a second threshold, and a second window comparator determining whether a signal at a second input has a voltage higher than the first threshold but lower than the second threshold. A logic circuit generates pulses in response to either the first window comparator determining that the signal at the first differential input has a voltage higher than the first threshold but lower than the second threshold or the second window comparator determining that the signal at the second input has a voltage higher than the first threshold but lower than the second threshold. A filter circuit receives the pulses from the logic circuit and generates a flag indicating that the signal is invalid, based upon pulses received from the logic circuit.

Abstract: A system and method for transitioning a displayed visualization from a first state to a second state. An example method includes displaying an orbit visualization characterized by a first state, wherein the orbit visualization includes a parent node and one or more child nodes positioned about a first orbit path that at least partially circumscribes the parent node; selectively initiating navigation of the orbit visualization; transitioning display of the parent node and one or more child nodes in accordance with the navigation by animating repositioning of the parent node and the one or more child nodes on a user interface display screen, such that a resulting node positioning characterizes the orbit visualization in the second state representative of a navigated-to location. The navigation may represent a downward or upward navigation of hierarchically related data, such that the animation illustrates separation of one or more petals from a selected node or movement toward the selected node, respectively.

Abstract: A system and method for facilitating graphically conveying information via a visualization. An example method includes accessing a first set of data characterized by hierarchically related data objects; representing a first object as a first central node in a visualization; displaying one or more additional second objects via one or more second nodes that are positioned on a first orbit path around the central node; determining if an additional object of the one or more second objects exhibits a superior hierarchical relationship relative to one or more third objects; and then illustrating the one or more third objects as petals that are circumferentially displayed about one or more outer edges of one or more nodes of the one or more second objects. The example method further includes enabling conversion of petals to planet nodes that orbit one of the second nodes.