Multi-core virtual machines (VMs) are now a norm in data center environments. However,
one of the well-known problems that VMs suffer from is the vCPU scheduling problem that …

We show that Linux containers are vulnerable to a new class of attacks–synchronization
attacks–that exploit kernel synchronization to harm application performance, where an …

Consolidating multiple virtual machines into a single server has been widely adopted in
cloud computing to improve system utilization. However, the sharing of physical CPUs …

Today's cloud platforms offer large virtual machine (VM) instances with multiple virtual CPUs
(vCPU) on manycore machines. These machines typically have a deep memory hierarchy to …

Grace period computation is a core part of the Read-Copy-Update (RCU) synchronization
technique that determines the safe time to reclaim the deferred objects' memory. We first …

In shared environments such as operating systems, servers (databases, key-value stores),
and hypervisors, multiple tenants with varied requirements compete to access the shared …

Efficiency is a crucial concern across computing systems, from the edge to the cloud.
Paradoxically, even as the latencies of bottleneck components such as storage and …

Server virtualization is a technology of prime importance in contemporary data centers.
Virtualization provides two key mechanisms, virtual instances and migration, that enable the …

La virtualisation est une technologie de première importance dans les centres informatiques
(data centers). Elle fournit deux mécanismes clés, les machines virtuelles et la migration, qui …

I am fortunate to have had the opportunity to collaborate with and learn from amazing
people. First, I owe my deepest gratitude to my advisor, Taesoo Kim. Throughout my Ph. D …