MemoryPerformance4 min read
Is that a memory leak, or just a cache?
Reading a memory trend on a real device. Sawtooth versus staircase, what jetsam looks like from outside, and why a crash with no exception is a memory bug.
Articles on iOS debugging, performance optimization, file management and power analysis, plus product updates.
MemoryPerformance4 min read
Reading a memory trend on a real device. Sawtooth versus staircase, what jetsam looks like from outside, and why a crash with no exception is a memory bug.
Documents, Library, Caches and tmp. What iOS backs up, what it deletes without notice, and why "the cache will not clear" is usually a directory choice.
DistributionDevices3 min read
Signature, profile, UDID, storage, version numbers and trust. Why an iOS build fails to install on a test device, and how to tell the causes apart.
What to capture while a bug is happening, so the ticket contains evidence instead of a description: logs, timings, device state and screenshots.
PerformanceApp data3 min read
A mini-program runs inside another company's app. How that affects your measurements, and how to attribute cost to the right process.
12 articles in total