Messages in this thread | | | Date | Tue, 12 Feb 2019 14:08:28 +0100 | From | Jiri Olsa <> | Subject | Re: [PATCH v2 2/4] perf record: implement -z=<level> and --mmap-flush=<thres> options |
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On Mon, Feb 11, 2019 at 11:22:38PM +0300, Alexey Budankov wrote:
SNIP
> - if (rec->opts.nr_cblocks > nr_cblocks_max) > - rec->opts.nr_cblocks = nr_cblocks_max; > - if (verbose > 0) > - pr_info("nr_cblocks: %d\n", rec->opts.nr_cblocks); > + if (rec->opts.comp_level > 22) > + rec->opts.comp_level = 0; > + if (record__comp_enabled(rec) && !rec->opts.nr_cblocks) { > + /* > + * Allocate aio.data[0] buffer for compression. > + */ > + rec->opts.nr_cblocks = -1; > + }
I assume you're using aio.data[0] as a buffer for non-aio case as compression buffer.. if that's the case, please dont do that and use separate buffer for that
jirka
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