Latency on StorageNews

PostgreSQL storage: Why S3 fails WAL flushes

Fri, 17 Apr 2026 00:00:00 +0000

PostgreSQL stalls because WAL flushes demand microsecond latency that cheap storage cannot provide.

The prevailing thesis for 2026 is clear: attempting to force S3 object storage to handle high-frequency transactional writes is a fundamental architectural error that sacrifices availability for false economy. As TechTarget notes, while AI and hybrid multi-cloud strategies drive cost governance, the physical reality of disk I/O latency remains the ultimate bottleneck for database durability. Alasdair Brown's analysis confirms that the primary challenge in running Postgres is not the volume of bytes stored, but surviving the moments when the database must stop and wait for durable commits.

AllFlash storage: Why 876K IOPS matters for AI

Wed, 04 Mar 2026 00:00:00 +0000

Sustaining over 876,256 IOPS with a 32 μs response time proves that legacy hybrid arrays cannot support modern AI workloads. The technical validation by Enterprise Strategy Group confirms that the New-Gen OceanStor Dorado Converged All-Flash Storage delivers the necessary balance of speed, durability, and cost efficiency that current market demands require.

Express metrics for S3: Validate single-digit ms

Sun, 01 Mar 2026 00:00:00 +0000

Amazon S3 Express One Zone now delivers minute-level request metrics as of the March 31, 2026 update from Amazon Web Services, Inc. This integration finally provides the granular visibility required to validate single-digit millisecond latency claims for latency-sensitive applications. Without these specific data points, operators are essentially flying blind in high-throughput environments where generative AI workloads demand absolute precision.