Re: fadvise+sync_file_range Vs O_DIRECT

2007-04-04 Thread Phillip Susi
Ameya Mitragotri wrote: Did you use overlapped aio with O_DIRECT or just send down one request at a time? The app sends the requests one at a time For best results, you need to send down several requests at once so the pipeline does not stall in between requests. - To unsubscribe from thi

Re: fadvise+sync_file_range Vs O_DIRECT

2007-04-04 Thread Ameya Mitragotri
On 4/4/07, Phillip Susi <[EMAIL PROTECTED]> wrote: Ameya Mitragotri wrote: > Hello, > I am doing some benchmarking on writes to the hdd from a simple > application (attached). > Im benchmarking the writes using the following > - write with O_DIRECT > - write with fadvise + O_SYNC > - write with f

Re: fadvise+sync_file_range Vs O_DIRECT

2007-04-03 Thread Phillip Susi
Ameya Mitragotri wrote: Hello, I am doing some benchmarking on writes to the hdd from a simple application (attached). Im benchmarking the writes using the following - write with O_DIRECT - write with fadvise + O_SYNC - write with fadvise + sync_file_range Did you use overlapped aio with O_DIRE

fadvise+sync_file_range Vs O_DIRECT

2007-04-03 Thread Ameya Mitragotri
Hello, I am doing some benchmarking on writes to the hdd from a simple application (attached). Im benchmarking the writes using the following - write with O_DIRECT - write with fadvise + O_SYNC - write with fadvise + sync_file_range Ive tested the writes in chunks of 4/8/16 KB and 1MB The result