jim owens wrote:
For most SATA drives, disabling write back cache seems to take high
toll on write throughput. :-(
I measured this yesterday. This is true for pure write workloads;
for mixed read/write workloads the throughput decrease is negligible.
Different tests on different hardware
give different results at different times!
True. But data loss is forever!
I got flamed for this on another list, but let's disable the write
cache and live with the performance drop.
We don't get to decide this, customers do.
We get to pick the defaults.
As they say in the raid forum... fast, cheap, good - pick any 2
We can upgrade slow to fast, but !good gets upgraded to another fs.
P.S. no flames because we chose no-battery == disable-write-cache
ACK!
--
I have a truly marvellous patch that fixes the bug which this
signature is too narrow to contain.
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