For the first time in two decades, PassMark's CPU benchmark data reveals a year-over-year decline in average CPU performance. While single-threaded performance continued to climb slightly, multi-threaded performance dropped significantly, leading to the overall decrease. This is attributed to a shift in the market away from high-core-count CPUs aimed at enthusiasts and servers, towards more mainstream and power-efficient processors, often with fewer cores. Additionally, while new architectures are being introduced, they haven't yet achieved widespread adoption to offset this trend.
German consumers are reporting that Seagate hard drives advertised and sold as new were actually refurbished drives with heavy prior usage. Some drives reportedly logged tens of thousands of power-on hours and possessed SMART data indicating significant wear, including reallocated sectors and high spin-retry counts. This affects several models, including IronWolf and Exos enterprise-grade drives purchased through various retailers. While Seagate has initiated replacements for some affected customers, the extent of the issue and the company's official response remain unclear. Concerns persist regarding the potential for widespread resale of used drives as new, raising questions about Seagate's quality control and refurbishment practices.
Hacker News commenters express skepticism and concern over the report of Seagate allegedly selling used hard drives as new in Germany. Several users doubt the veracity of the claims, suggesting the reported drive hours could be a SMART reporting error or a misunderstanding. Others point out the potential for refurbished drives to be sold unknowingly, highlighting the difficulty in distinguishing between genuinely new and refurbished drives. Some commenters call for more evidence, suggesting analysis of the drive's physical condition or firmware versions. A few users share anecdotes of similar experiences with Seagate drives failing prematurely. The overall sentiment is one of caution towards Seagate, with some users recommending alternative brands.
Summary of Comments ( 14 )
https://news.ycombinator.com/item?id=43017612
Hacker News users discussed potential reasons for the reported drop in average CPU performance. Some attributed it to a shift in market focus from single-threaded performance to multi-core designs, impacting PassMark's scoring methodology. Others pointed to the slowdown of Moore's Law and the increasing difficulty of achieving significant performance gains. Several commenters questioned the validity of PassMark as a reliable benchmark, suggesting it doesn't accurately reflect real-world performance or the specific needs of various workloads. A few also mentioned the impact of the pandemic and supply chain issues on CPU development and release schedules. Finally, some users expressed skepticism about the significance of the drop, noting that performance improvements have plateaued in recent years.
The Hacker News post titled "The first yearly drop in average CPU performance in its 20 years of benchmarks" generated a robust discussion with a variety of perspectives on the observed decline. Several commenters focused on the methodology of the PassMark benchmark, questioning its relevance in representing real-world performance gains. One user pointed out that PassMark heavily weights integer performance, an area where gains have plateaued, while neglecting other crucial areas like single-threaded performance which continues to improve. This sentiment was echoed by others who argued that specialized workloads, like AI and machine learning, see significant performance improvements not captured by PassMark.
A recurring theme in the comments was the shift in focus from raw clock speed increases to architectural improvements and power efficiency. Commenters suggested that the pursuit of higher clock speeds has reached its practical limit due to thermal constraints and diminishing returns. Instead, manufacturers are prioritizing improvements in areas like instruction-level parallelism, cache efficiency, and core count, which may not translate directly into higher PassMark scores but contribute to overall system performance.
Several users highlighted the impact of the transition to ARM architecture, particularly Apple's silicon, on the benchmark results. They argued that PassMark's predominantly x86-centric benchmark suite doesn't accurately reflect the performance gains seen in ARM-based systems, potentially skewing the overall average downwards.
The discussion also touched on the broader implications of this trend, with some commenters speculating about the end of Moore's Law and the future of CPU performance improvements. Some posited that we are entering a period of slower, more incremental gains focused on specialized hardware and software optimizations rather than the dramatic leaps seen in the past. Others remained optimistic, arguing that new technologies like chiplet designs and advanced manufacturing processes will continue to drive performance improvements, even if they are not reflected in traditional benchmarks like PassMark.
Finally, a few commenters questioned the reliability of PassMark itself, citing potential biases and limitations in its data collection methodology. They emphasized the importance of considering multiple benchmarks and real-world performance evaluations rather than relying solely on a single metric.